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Finding the Fourth Proportional to 237,991.44, 328,425.48 and 137,387.28

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Solution

The fourth proportional to 237,991.44, 328,425.48 and 137,387.28 is: 189,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,991.44 : 328,425.48 = 137,387.28 : x
  2. Step 2: Convert to fraction form
    237,991.44/328,425.48 = 137,387.28/x
  3. Step 3: Cross multiply
    237,991.44x = 328,425.48 × 137,387.28
  4. Step 4: Simplify right side
    237,991.44x = 45,121,483,379.89
  5. Step 5: Solve for x
    x = 45,121,483,379.89/237,991.44
  6. Step 6: Final answer
    x = 189,592.88

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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.