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Finding the Fourth Proportional to 221,808.30, 332,712.45 and 88,709.10

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Solution

The fourth proportional to 221,808.30, 332,712.45 and 88,709.10 is: 133,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,808.30 : 332,712.45 = 88,709.10 : x
  2. Step 2: Convert to fraction form
    221,808.30/332,712.45 = 88,709.10/x
  3. Step 3: Cross multiply
    221,808.30x = 332,712.45 × 88,709.10
  4. Step 4: Simplify right side
    221,808.30x = 29,514,621,998.30
  5. Step 5: Solve for x
    x = 29,514,621,998.30/221,808.30
  6. Step 6: Final answer
    x = 133,063.65

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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.