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Finding the Fourth Proportional to 243,769.97, 336,400.62 and 136,339.92

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Solution

The fourth proportional to 243,769.97, 336,400.62 and 136,339.92 is: 188,148.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,769.97 : 336,400.62 = 136,339.92 : x
  2. Step 2: Convert to fraction form
    243,769.97/336,400.62 = 136,339.92/x
  3. Step 3: Cross multiply
    243,769.97x = 336,400.62 × 136,339.92
  4. Step 4: Simplify right side
    243,769.97x = 45,864,833,618.75
  5. Step 5: Solve for x
    x = 45,864,833,618.75/243,769.97
  6. Step 6: Final answer
    x = 188,148.01

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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.