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Finding the Fourth Proportional to 319,395.78, 479,425.97 and 235,250.96

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Solution

The fourth proportional to 319,395.78, 479,425.97 and 235,250.96 is: 353,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,395.78 : 479,425.97 = 235,250.96 : x
  2. Step 2: Convert to fraction form
    319,395.78/479,425.97 = 235,250.96/x
  3. Step 3: Cross multiply
    319,395.78x = 479,425.97 × 235,250.96
  4. Step 4: Simplify right side
    319,395.78x = 112,785,417,882.43
  5. Step 5: Solve for x
    x = 112,785,417,882.43/319,395.78
  6. Step 6: Final answer
    x = 353,121.19

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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.