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Finding the Fourth Proportional to 223,687.62, 335,605.23 and 90,679.74

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Solution

The fourth proportional to 223,687.62, 335,605.23 and 90,679.74 is: 136,049.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,687.62 : 335,605.23 = 90,679.74 : x
  2. Step 2: Convert to fraction form
    223,687.62/335,605.23 = 90,679.74/x
  3. Step 3: Cross multiply
    223,687.62x = 335,605.23 × 90,679.74
  4. Step 4: Simplify right side
    223,687.62x = 30,432,594,999.04
  5. Step 5: Solve for x
    x = 30,432,594,999.04/223,687.62
  6. Step 6: Final answer
    x = 136,049.53

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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.