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Finding the Fourth Proportional to 221,273.60, 331,850.88 and 81,032.96

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Solution

The fourth proportional to 221,273.60, 331,850.88 and 81,032.96 is: 121,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,273.60 : 331,850.88 = 81,032.96 : x
  2. Step 2: Convert to fraction form
    221,273.60/331,850.88 = 81,032.96/x
  3. Step 3: Cross multiply
    221,273.60x = 331,850.88 × 81,032.96
  4. Step 4: Simplify right side
    221,273.60x = 26,890,859,085.00
  5. Step 5: Solve for x
    x = 26,890,859,085.00/221,273.60
  6. Step 6: Final answer
    x = 121,527.64

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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.