Home / 318,031.36-438,700.53-198,592

Finding the Fourth Proportional to 318,031.36, 438,700.53 and 198,592

Calculator

Solution

The fourth proportional to 318,031.36, 438,700.53 and 198,592 is: 273,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,031.36 : 438,700.53 = 198,592 : x
  2. Step 2: Convert to fraction form
    318,031.36/438,700.53 = 198,592/x
  3. Step 3: Cross multiply
    318,031.36x = 438,700.53 × 198,592
  4. Step 4: Simplify right side
    318,031.36x = 87,122,415,653.76
  5. Step 5: Solve for x
    x = 87,122,415,653.76/318,031.36
  6. Step 6: Final answer
    x = 273,942.85

Related Problems

Find fourth proportional to 159,015.68, 219,350.27 and 99,296
Half scale
Find fourth proportional to 636,062.72, 877,401.06 and 397,184
Double scale
Find fourth proportional to 318,032.36, 438,701.91 and 198,593
Similar ratio
Find fourth proportional to 477,047.04, 658,050.80 and 297,888
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.