Home / 392,272.10-588,116.55-214,979.30

Finding the Fourth Proportional to 392,272.10, 588,116.55 and 214,979.30

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Solution

The fourth proportional to 392,272.10, 588,116.55 and 214,979.30 is: 322,309.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,272.10 : 588,116.55 = 214,979.30 : x
  2. Step 2: Convert to fraction form
    392,272.10/588,116.55 = 214,979.30/x
  3. Step 3: Cross multiply
    392,272.10x = 588,116.55 × 214,979.30
  4. Step 4: Simplify right side
    392,272.10x = 126,432,884,237.42
  5. Step 5: Solve for x
    x = 126,432,884,237.42/392,272.10
  6. Step 6: Final answer
    x = 322,309.14

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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.