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Finding the Fourth Proportional to 243,389.94, 335,854.02 and 135,957.66

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Solution

The fourth proportional to 243,389.94, 335,854.02 and 135,957.66 is: 187,608.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,389.94 : 335,854.02 = 135,957.66 : x
  2. Step 2: Convert to fraction form
    243,389.94/335,854.02 = 135,957.66/x
  3. Step 3: Cross multiply
    243,389.94x = 335,854.02 × 135,957.66
  4. Step 4: Simplify right side
    243,389.94x = 45,661,926,660.79
  5. Step 5: Solve for x
    x = 45,661,926,660.79/243,389.94
  6. Step 6: Final answer
    x = 187,608.11

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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.