Home / 392,217.66-588,132.05-139,460.18

Finding the Fourth Proportional to 392,217.66, 588,132.05 and 139,460.18

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Solution

The fourth proportional to 392,217.66, 588,132.05 and 139,460.18 is: 209,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,217.66 : 588,132.05 = 139,460.18 : x
  2. Step 2: Convert to fraction form
    392,217.66/588,132.05 = 139,460.18/x
  3. Step 3: Cross multiply
    392,217.66x = 588,132.05 × 139,460.18
  4. Step 4: Simplify right side
    392,217.66x = 82,020,997,918.81
  5. Step 5: Solve for x
    x = 82,020,997,918.81/392,217.66
  6. Step 6: Final answer
    x = 209,121.12

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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.