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Finding the Fourth Proportional to 399,592.38, 551,437.48 and 220,744.38

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Solution

The fourth proportional to 399,592.38, 551,437.48 and 220,744.38 is: 304,627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,592.38 : 551,437.48 = 220,744.38 : x
  2. Step 2: Convert to fraction form
    399,592.38/551,437.48 = 220,744.38/x
  3. Step 3: Cross multiply
    399,592.38x = 551,437.48 × 220,744.38
  4. Step 4: Simplify right side
    399,592.38x = 121,726,724,631.36
  5. Step 5: Solve for x
    x = 121,726,724,631.36/399,592.38
  6. Step 6: Final answer
    x = 304,627.24

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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.