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Finding the Fourth Proportional to 243,232.56, 335,694.51 and 135,809.55

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Solution

The fourth proportional to 243,232.56, 335,694.51 and 135,809.55 is: 187,435.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,232.56 : 335,694.51 = 135,809.55 : x
  2. Step 2: Convert to fraction form
    243,232.56/335,694.51 = 135,809.55/x
  3. Step 3: Cross multiply
    243,232.56x = 335,694.51 × 135,809.55
  4. Step 4: Simplify right side
    243,232.56x = 45,590,520,340.57
  5. Step 5: Solve for x
    x = 45,590,520,340.57/243,232.56
  6. Step 6: Final answer
    x = 187,435.93

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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.