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Finding the Fourth Proportional to 316,652.64, 437,013.60 and 187,668

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Solution

The fourth proportional to 316,652.64, 437,013.60 and 187,668 is: 259,001.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,652.64 : 437,013.60 = 187,668 : x
  2. Step 2: Convert to fraction form
    316,652.64/437,013.60 = 187,668/x
  3. Step 3: Cross multiply
    316,652.64x = 437,013.60 × 187,668
  4. Step 4: Simplify right side
    316,652.64x = 82,013,468,284.80
  5. Step 5: Solve for x
    x = 82,013,468,284.80/316,652.64
  6. Step 6: Final answer
    x = 259,001.37

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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.