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Finding the Fourth Proportional to 243.99, 366.27 and 167.28

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Solution

The fourth proportional to 243.99, 366.27 and 167.28 is: 251.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.99 : 366.27 = 167.28 : x
  2. Step 2: Convert to fraction form
    243.99/366.27 = 167.28/x
  3. Step 3: Cross multiply
    243.99x = 366.27 × 167.28
  4. Step 4: Simplify right side
    243.99x = 61,269.65
  5. Step 5: Solve for x
    x = 61,269.65/243.99
  6. Step 6: Final answer
    x = 251.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.