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Finding the Fourth Proportional to 272,248.79, 408,392.63 and 72,568.13

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Solution

The fourth proportional to 272,248.79, 408,392.63 and 72,568.13 is: 108,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,248.79 : 408,392.63 = 72,568.13 : x
  2. Step 2: Convert to fraction form
    272,248.79/408,392.63 = 72,568.13/x
  3. Step 3: Cross multiply
    272,248.79x = 408,392.63 × 72,568.13
  4. Step 4: Simplify right side
    272,248.79x = 29,636,289,102.04
  5. Step 5: Solve for x
    x = 29,636,289,102.04/272,248.79
  6. Step 6: Final answer
    x = 108,857.38

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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.