Home / 307,439.20-461,223.60-129,854.80

Finding the Fourth Proportional to 307,439.20, 461,223.60 and 129,854.80

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Solution

The fourth proportional to 307,439.20, 461,223.60 and 129,854.80 is: 194,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,439.20 : 461,223.60 = 129,854.80 : x
  2. Step 2: Convert to fraction form
    307,439.20/461,223.60 = 129,854.80/x
  3. Step 3: Cross multiply
    307,439.20x = 461,223.60 × 129,854.80
  4. Step 4: Simplify right side
    307,439.20x = 59,892,098,333.28
  5. Step 5: Solve for x
    x = 59,892,098,333.28/307,439.20
  6. Step 6: Final answer
    x = 194,809.57

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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.