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Finding the Fourth Proportional to 272,148.77, 408,228.77 and 99,034.58

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Solution

The fourth proportional to 272,148.77, 408,228.77 and 99,034.58 is: 148,553.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,148.77 : 408,228.77 = 99,034.58 : x
  2. Step 2: Convert to fraction form
    272,148.77/408,228.77 = 99,034.58/x
  3. Step 3: Cross multiply
    272,148.77x = 408,228.77 × 99,034.58
  4. Step 4: Simplify right side
    272,148.77x = 40,428,764,780.87
  5. Step 5: Solve for x
    x = 40,428,764,780.87/272,148.77
  6. Step 6: Final answer
    x = 148,553.91

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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.