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Finding the Fourth Proportional to 272,104.68, 408,156.36 and 72,425.04

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Solution

The fourth proportional to 272,104.68, 408,156.36 and 72,425.04 is: 108,637.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,104.68 : 408,156.36 = 72,425.04 : x
  2. Step 2: Convert to fraction form
    272,104.68/408,156.36 = 72,425.04/x
  3. Step 3: Cross multiply
    272,104.68x = 408,156.36 × 72,425.04
  4. Step 4: Simplify right side
    272,104.68x = 29,560,740,699.25
  5. Step 5: Solve for x
    x = 29,560,740,699.25/272,104.68
  6. Step 6: Final answer
    x = 108,637.38

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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.