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Finding the Fourth Proportional to 176.75, 243.86 and 114.65

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Solution

The fourth proportional to 176.75, 243.86 and 114.65 is: 158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.75 : 243.86 = 114.65 : x
  2. Step 2: Convert to fraction form
    176.75/243.86 = 114.65/x
  3. Step 3: Cross multiply
    176.75x = 243.86 × 114.65
  4. Step 4: Simplify right side
    176.75x = 27,956.76
  5. Step 5: Solve for x
    x = 27,956.76/176.75
  6. Step 6: Final answer
    x = 158.18

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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.