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Finding the Fourth Proportional to 243,170.87, 335,581.11 and 134,274.92

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Solution

The fourth proportional to 243,170.87, 335,581.11 and 134,274.92 is: 185,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,170.87 : 335,581.11 = 134,274.92 : x
  2. Step 2: Convert to fraction form
    243,170.87/335,581.11 = 134,274.92/x
  3. Step 3: Cross multiply
    243,170.87x = 335,581.11 × 134,274.92
  4. Step 4: Simplify right side
    243,170.87x = 45,060,125,020.86
  5. Step 5: Solve for x
    x = 45,060,125,020.86/243,170.87
  6. Step 6: Final answer
    x = 185,302.32

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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.