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Finding the Fourth Proportional to 218,617.56, 327,926.40 and 168,770.43

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Solution

The fourth proportional to 218,617.56, 327,926.40 and 168,770.43 is: 253,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,617.56 : 327,926.40 = 168,770.43 : x
  2. Step 2: Convert to fraction form
    218,617.56/327,926.40 = 168,770.43/x
  3. Step 3: Cross multiply
    218,617.56x = 327,926.40 × 168,770.43
  4. Step 4: Simplify right side
    218,617.56x = 55,344,279,536.35
  5. Step 5: Solve for x
    x = 55,344,279,536.35/218,617.56
  6. Step 6: Final answer
    x = 253,155.69

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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.