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Finding the Fourth Proportional to 399,924.52, 551,902.43 and 238,793.65

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Solution

The fourth proportional to 399,924.52, 551,902.43 and 238,793.65 is: 329,539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,924.52 : 551,902.43 = 238,793.65 : x
  2. Step 2: Convert to fraction form
    399,924.52/551,902.43 = 238,793.65/x
  3. Step 3: Cross multiply
    399,924.52x = 551,902.43 × 238,793.65
  4. Step 4: Simplify right side
    399,924.52x = 131,790,795,703.57
  5. Step 5: Solve for x
    x = 131,790,795,703.57/399,924.52
  6. Step 6: Final answer
    x = 329,539.17

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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.