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Finding the Fourth Proportional to 300,080.56, 450,053.88 and 89,691.16

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Solution

The fourth proportional to 300,080.56, 450,053.88 and 89,691.16 is: 134,516.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,080.56 : 450,053.88 = 89,691.16 : x
  2. Step 2: Convert to fraction form
    300,080.56/450,053.88 = 89,691.16/x
  3. Step 3: Cross multiply
    300,080.56x = 450,053.88 × 89,691.16
  4. Step 4: Simplify right side
    300,080.56x = 40,365,854,559.70
  5. Step 5: Solve for x
    x = 40,365,854,559.70/300,080.56
  6. Step 6: Final answer
    x = 134,516.73

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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.