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Finding the Fourth Proportional to 448,660.30, 672,759.60 and 133,076.20

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Solution

The fourth proportional to 448,660.30, 672,759.60 and 133,076.20 is: 199,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,660.30 : 672,759.60 = 133,076.20 : x
  2. Step 2: Convert to fraction form
    448,660.30/672,759.60 = 133,076.20/x
  3. Step 3: Cross multiply
    448,660.30x = 672,759.60 × 133,076.20
  4. Step 4: Simplify right side
    448,660.30x = 89,528,291,081.52
  5. Step 5: Solve for x
    x = 89,528,291,081.52/448,660.30
  6. Step 6: Final answer
    x = 199,545.83

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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.