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Finding the Fourth Proportional to 272,470.56, 408,706.07 and 130,282.38

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Solution

The fourth proportional to 272,470.56, 408,706.07 and 130,282.38 is: 195,423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,470.56 : 408,706.07 = 130,282.38 : x
  2. Step 2: Convert to fraction form
    272,470.56/408,706.07 = 130,282.38/x
  3. Step 3: Cross multiply
    272,470.56x = 408,706.07 × 130,282.38
  4. Step 4: Simplify right side
    272,470.56x = 53,247,198,868.63
  5. Step 5: Solve for x
    x = 53,247,198,868.63/272,470.56
  6. Step 6: Final answer
    x = 195,423.68

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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.