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Finding the Fourth Proportional to 499,049.67, 688,690.31 and 272,695.17

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Solution

The fourth proportional to 499,049.67, 688,690.31 and 272,695.17 is: 376,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,049.67 : 688,690.31 = 272,695.17 : x
  2. Step 2: Convert to fraction form
    499,049.67/688,690.31 = 272,695.17/x
  3. Step 3: Cross multiply
    499,049.67x = 688,690.31 × 272,695.17
  4. Step 4: Simplify right side
    499,049.67x = 187,802,521,162.80
  5. Step 5: Solve for x
    x = 187,802,521,162.80/499,049.67
  6. Step 6: Final answer
    x = 376,320.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.