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Finding the Fourth Proportional to 272,520.43, 408,763.81 and 101,708.89

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Solution

The fourth proportional to 272,520.43, 408,763.81 and 101,708.89 is: 152,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,520.43 : 408,763.81 = 101,708.89 : x
  2. Step 2: Convert to fraction form
    272,520.43/408,763.81 = 101,708.89/x
  3. Step 3: Cross multiply
    272,520.43x = 408,763.81 × 101,708.89
  4. Step 4: Simplify right side
    272,520.43x = 41,574,913,387.27
  5. Step 5: Solve for x
    x = 41,574,913,387.27/272,520.43
  6. Step 6: Final answer
    x = 152,557.05

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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.