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Finding the Fourth Proportional to 223,842.42, 335,901.87 and 90,723.78

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Solution

The fourth proportional to 223,842.42, 335,901.87 and 90,723.78 is: 136,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,842.42 : 335,901.87 = 90,723.78 : x
  2. Step 2: Convert to fraction form
    223,842.42/335,901.87 = 90,723.78/x
  3. Step 3: Cross multiply
    223,842.42x = 335,901.87 × 90,723.78
  4. Step 4: Simplify right side
    223,842.42x = 30,474,287,355.47
  5. Step 5: Solve for x
    x = 30,474,287,355.47/223,842.42
  6. Step 6: Final answer
    x = 136,141.70

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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.