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Finding the Fourth Proportional to 218,744.70, 328,117.05 and 165,600.60

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Solution

The fourth proportional to 218,744.70, 328,117.05 and 165,600.60 is: 248,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,744.70 : 328,117.05 = 165,600.60 : x
  2. Step 2: Convert to fraction form
    218,744.70/328,117.05 = 165,600.60/x
  3. Step 3: Cross multiply
    218,744.70x = 328,117.05 × 165,600.60
  4. Step 4: Simplify right side
    218,744.70x = 54,336,380,350.23
  5. Step 5: Solve for x
    x = 54,336,380,350.23/218,744.70
  6. Step 6: Final answer
    x = 248,400.90

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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.