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Finding the Fourth Proportional to 272,252.28, 408,397.88 and 72,571.64

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Solution

The fourth proportional to 272,252.28, 408,397.88 and 72,571.64 is: 108,862.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,252.28 : 408,397.88 = 72,571.64 : x
  2. Step 2: Convert to fraction form
    272,252.28/408,397.88 = 72,571.64/x
  3. Step 3: Cross multiply
    272,252.28x = 408,397.88 × 72,571.64
  4. Step 4: Simplify right side
    272,252.28x = 29,638,103,924.12
  5. Step 5: Solve for x
    x = 29,638,103,924.12/272,252.28
  6. Step 6: Final answer
    x = 108,862.65

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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.