Home / 272,306.56-408,086.16-172,287.70

Finding the Fourth Proportional to 272,306.56, 408,086.16 and 172,287.70

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Solution

The fourth proportional to 272,306.56, 408,086.16 and 172,287.70 is: 258,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,306.56 : 408,086.16 = 172,287.70 : x
  2. Step 2: Convert to fraction form
    272,306.56/408,086.16 = 172,287.70/x
  3. Step 3: Cross multiply
    272,306.56x = 408,086.16 × 172,287.70
  4. Step 4: Simplify right side
    272,306.56x = 70,308,226,601.08
  5. Step 5: Solve for x
    x = 70,308,226,601.08/272,306.56
  6. Step 6: Final answer
    x = 258,195.13

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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.