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Finding the Fourth Proportional to 221,807.08, 332,589.10 and 109,239.76

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Solution

The fourth proportional to 221,807.08, 332,589.10 and 109,239.76 is: 163,799.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,807.08 : 332,589.10 = 109,239.76 : x
  2. Step 2: Convert to fraction form
    221,807.08/332,589.10 = 109,239.76/x
  3. Step 3: Cross multiply
    221,807.08x = 332,589.10 × 109,239.76
  4. Step 4: Simplify right side
    221,807.08x = 36,331,953,462.62
  5. Step 5: Solve for x
    x = 36,331,953,462.62/221,807.08
  6. Step 6: Final answer
    x = 163,799.79

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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.