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Finding the Fourth Proportional to 448,545.58, 672,703.77 and 132,928.78

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Solution

The fourth proportional to 448,545.58, 672,703.77 and 132,928.78 is: 199,359.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,545.58 : 672,703.77 = 132,928.78 : x
  2. Step 2: Convert to fraction form
    448,545.58/672,703.77 = 132,928.78/x
  3. Step 3: Cross multiply
    448,545.58x = 672,703.77 × 132,928.78
  4. Step 4: Simplify right side
    448,545.58x = 89,421,691,447.50
  5. Step 5: Solve for x
    x = 89,421,691,447.50/448,545.58
  6. Step 6: Final answer
    x = 199,359.21

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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.