Home / 305,074-421,002.24-185,842

Finding the Fourth Proportional to 305,074, 421,002.24 and 185,842

Calculator

Solution

The fourth proportional to 305,074, 421,002.24 and 185,842 is: 256,462.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,074 : 421,002.24 = 185,842 : x
  2. Step 2: Convert to fraction form
    305,074/421,002.24 = 185,842/x
  3. Step 3: Cross multiply
    305,074x = 421,002.24 × 185,842
  4. Step 4: Simplify right side
    305,074x = 78,239,898,286.08
  5. Step 5: Solve for x
    x = 78,239,898,286.08/305,074
  6. Step 6: Final answer
    x = 256,462.03

Related Problems

Find fourth proportional to 152,537, 210,501.12 and 92,921
Half scale
Find fourth proportional to 610,148, 842,004.48 and 371,684
Double scale
Find fourth proportional to 305,075, 421,003.62 and 185,843
Similar ratio
Find fourth proportional to 457,611, 631,503.36 and 278,763
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.