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Finding the Fourth Proportional to 221,763.60, 332,645.40 and 109,497.60

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Solution

The fourth proportional to 221,763.60, 332,645.40 and 109,497.60 is: 164,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,763.60 : 332,645.40 = 109,497.60 : x
  2. Step 2: Convert to fraction form
    221,763.60/332,645.40 = 109,497.60/x
  3. Step 3: Cross multiply
    221,763.60x = 332,645.40 × 109,497.60
  4. Step 4: Simplify right side
    221,763.60x = 36,423,872,951.04
  5. Step 5: Solve for x
    x = 36,423,872,951.04/221,763.60
  6. Step 6: Final answer
    x = 164,246.40

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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.