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Finding the Fourth Proportional to 379,243.62, 523,350.89 and 207,159.53

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Solution

The fourth proportional to 379,243.62, 523,350.89 and 207,159.53 is: 285,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,243.62 : 523,350.89 = 207,159.53 : x
  2. Step 2: Convert to fraction form
    379,243.62/523,350.89 = 207,159.53/x
  3. Step 3: Cross multiply
    379,243.62x = 523,350.89 × 207,159.53
  4. Step 4: Simplify right side
    379,243.62x = 108,417,121,521.78
  5. Step 5: Solve for x
    x = 108,417,121,521.78/379,243.62
  6. Step 6: Final answer
    x = 285,877.25

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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.