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Finding the Fourth Proportional to 221,685.92, 332,588.04 and 79,545.52

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Solution

The fourth proportional to 221,685.92, 332,588.04 and 79,545.52 is: 119,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,685.92 : 332,588.04 = 79,545.52 : x
  2. Step 2: Convert to fraction form
    221,685.92/332,588.04 = 79,545.52/x
  3. Step 3: Cross multiply
    221,685.92x = 332,588.04 × 79,545.52
  4. Step 4: Simplify right side
    221,685.92x = 26,455,888,587.58
  5. Step 5: Solve for x
    x = 26,455,888,587.58/221,685.92
  6. Step 6: Final answer
    x = 119,339.51

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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.