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Finding the Fourth Proportional to 253,375.35, 349,658.01 and 138,654.02

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Solution

The fourth proportional to 253,375.35, 349,658.01 and 138,654.02 is: 191,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,375.35 : 349,658.01 = 138,654.02 : x
  2. Step 2: Convert to fraction form
    253,375.35/349,658.01 = 138,654.02/x
  3. Step 3: Cross multiply
    253,375.35x = 349,658.01 × 138,654.02
  4. Step 4: Simplify right side
    253,375.35x = 48,481,486,963.41
  5. Step 5: Solve for x
    x = 48,481,486,963.41/253,375.35
  6. Step 6: Final answer
    x = 191,342.56

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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.