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Finding the Fourth Proportional to 243.16, 335.57 and 132.65

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Solution

The fourth proportional to 243.16, 335.57 and 132.65 is: 183.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.16 : 335.57 = 132.65 : x
  2. Step 2: Convert to fraction form
    243.16/335.57 = 132.65/x
  3. Step 3: Cross multiply
    243.16x = 335.57 × 132.65
  4. Step 4: Simplify right side
    243.16x = 44,513.36
  5. Step 5: Solve for x
    x = 44,513.36/243.16
  6. Step 6: Final answer
    x = 183.06

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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.