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Finding the Fourth Proportional to 243,269.35, 335,711.58 and 135,839.32

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Solution

The fourth proportional to 243,269.35, 335,711.58 and 135,839.32 is: 187,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,269.35 : 335,711.58 = 135,839.32 : x
  2. Step 2: Convert to fraction form
    243,269.35/335,711.58 = 135,839.32/x
  3. Step 3: Cross multiply
    243,269.35x = 335,711.58 × 135,839.32
  4. Step 4: Simplify right side
    243,269.35x = 45,602,832,743.33
  5. Step 5: Solve for x
    x = 45,602,832,743.33/243,269.35
  6. Step 6: Final answer
    x = 187,458.19

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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.