Home / 353,376-487,658.88-194,400

Finding the Fourth Proportional to 353,376, 487,658.88 and 194,400

Calculator

Solution

The fourth proportional to 353,376, 487,658.88 and 194,400 is: 268,272

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,376 : 487,658.88 = 194,400 : x
  2. Step 2: Convert to fraction form
    353,376/487,658.88 = 194,400/x
  3. Step 3: Cross multiply
    353,376x = 487,658.88 × 194,400
  4. Step 4: Simplify right side
    353,376x = 94,800,886,272
  5. Step 5: Solve for x
    x = 94,800,886,272/353,376
  6. Step 6: Final answer
    x = 268,272

Related Problems

Find fourth proportional to 176,688, 243,829.44 and 97,200
Half scale
Find fourth proportional to 706,752, 975,317.76 and 388,800
Double scale
Find fourth proportional to 353,377, 487,660.26 and 194,401
Similar ratio
Find fourth proportional to 530,064, 731,488.32 and 291,600
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.