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Finding the Fourth Proportional to 176.76, 243.95 and 114.63

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Solution

The fourth proportional to 176.76, 243.95 and 114.63 is: 158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.76 : 243.95 = 114.63 : x
  2. Step 2: Convert to fraction form
    176.76/243.95 = 114.63/x
  3. Step 3: Cross multiply
    176.76x = 243.95 × 114.63
  4. Step 4: Simplify right side
    176.76x = 27,963.42
  5. Step 5: Solve for x
    x = 27,963.42/176.76
  6. Step 6: Final answer
    x = 158.20

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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.