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Finding the Fourth Proportional to 223,375.68, 334,933.92 and 90,146.88

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Solution

The fourth proportional to 223,375.68, 334,933.92 and 90,146.88 is: 135,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,375.68 : 334,933.92 = 90,146.88 : x
  2. Step 2: Convert to fraction form
    223,375.68/334,933.92 = 90,146.88/x
  3. Step 3: Cross multiply
    223,375.68x = 334,933.92 × 90,146.88
  4. Step 4: Simplify right side
    223,375.68x = 30,193,247,894.17
  5. Step 5: Solve for x
    x = 30,193,247,894.17/223,375.68
  6. Step 6: Final answer
    x = 135,168.02

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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.