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Finding the Fourth Proportional to 272,074.62, 408,111.39 and 72,395.01

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Solution

The fourth proportional to 272,074.62, 408,111.39 and 72,395.01 is: 108,592.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,074.62 : 408,111.39 = 72,395.01 : x
  2. Step 2: Convert to fraction form
    272,074.62/408,111.39 = 72,395.01/x
  3. Step 3: Cross multiply
    272,074.62x = 408,111.39 × 72,395.01
  4. Step 4: Simplify right side
    272,074.62x = 29,545,228,160.16
  5. Step 5: Solve for x
    x = 29,545,228,160.16/272,074.62
  6. Step 6: Final answer
    x = 108,592.37

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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.