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Finding the Fourth Proportional to 243,311.82, 335,766.99 and 135,883.74

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Solution

The fourth proportional to 243,311.82, 335,766.99 and 135,883.74 is: 187,517.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,311.82 : 335,766.99 = 135,883.74 : x
  2. Step 2: Convert to fraction form
    243,311.82/335,766.99 = 135,883.74/x
  3. Step 3: Cross multiply
    243,311.82x = 335,766.99 × 135,883.74
  4. Step 4: Simplify right side
    243,311.82x = 45,625,274,369.74
  5. Step 5: Solve for x
    x = 45,625,274,369.74/243,311.82
  6. Step 6: Final answer
    x = 187,517.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.