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Finding the Fourth Proportional to 266,456.13, 399,968.72 and 114,728.29

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Solution

The fourth proportional to 266,456.13, 399,968.72 and 114,728.29 is: 172,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,456.13 : 399,968.72 = 114,728.29 : x
  2. Step 2: Convert to fraction form
    266,456.13/399,968.72 = 114,728.29/x
  3. Step 3: Cross multiply
    266,456.13x = 399,968.72 × 114,728.29
  4. Step 4: Simplify right side
    266,456.13x = 45,887,727,585.91
  5. Step 5: Solve for x
    x = 45,887,727,585.91/266,456.13
  6. Step 6: Final answer
    x = 172,214.95

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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.