Home / 374,655.20-561,982.80-137,948.90

Finding the Fourth Proportional to 374,655.20, 561,982.80 and 137,948.90

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Solution

The fourth proportional to 374,655.20, 561,982.80 and 137,948.90 is: 206,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,655.20 : 561,982.80 = 137,948.90 : x
  2. Step 2: Convert to fraction form
    374,655.20/561,982.80 = 137,948.90/x
  3. Step 3: Cross multiply
    374,655.20x = 561,982.80 × 137,948.90
  4. Step 4: Simplify right side
    374,655.20x = 77,524,909,078.92
  5. Step 5: Solve for x
    x = 77,524,909,078.92/374,655.20
  6. Step 6: Final answer
    x = 206,923.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.