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Finding the Fourth Proportional to 423,838.67, 635,758.29 and 108,295.88

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Solution

The fourth proportional to 423,838.67, 635,758.29 and 108,295.88 is: 162,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,838.67 : 635,758.29 = 108,295.88 : x
  2. Step 2: Convert to fraction form
    423,838.67/635,758.29 = 108,295.88/x
  3. Step 3: Cross multiply
    423,838.67x = 635,758.29 × 108,295.88
  4. Step 4: Simplify right side
    423,838.67x = 68,850,000,304.05
  5. Step 5: Solve for x
    x = 68,850,000,304.05/423,838.67
  6. Step 6: Final answer
    x = 162,443.89

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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.