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Finding the Fourth Proportional to 176.14, 243.29 and 126.93

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Solution

The fourth proportional to 176.14, 243.29 and 126.93 is: 175.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.14 : 243.29 = 126.93 : x
  2. Step 2: Convert to fraction form
    176.14/243.29 = 126.93/x
  3. Step 3: Cross multiply
    176.14x = 243.29 × 126.93
  4. Step 4: Simplify right side
    176.14x = 30,879.56
  5. Step 5: Solve for x
    x = 30,879.56/176.14
  6. Step 6: Final answer
    x = 175.32

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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.