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Finding the Fourth Proportional to 237,954.97, 356,818.56 and 138,142.72

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Solution

The fourth proportional to 237,954.97, 356,818.56 and 138,142.72 is: 207,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,954.97 : 356,818.56 = 138,142.72 : x
  2. Step 2: Convert to fraction form
    237,954.97/356,818.56 = 138,142.72/x
  3. Step 3: Cross multiply
    237,954.97x = 356,818.56 × 138,142.72
  4. Step 4: Simplify right side
    237,954.97x = 49,291,886,424.88
  5. Step 5: Solve for x
    x = 49,291,886,424.88/237,954.97
  6. Step 6: Final answer
    x = 207,147.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.