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Finding the Fourth Proportional to 176.97, 265.30 and 79.39

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Solution

The fourth proportional to 176.97, 265.30 and 79.39 is: 119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.97 : 265.30 = 79.39 : x
  2. Step 2: Convert to fraction form
    176.97/265.30 = 79.39/x
  3. Step 3: Cross multiply
    176.97x = 265.30 × 79.39
  4. Step 4: Simplify right side
    176.97x = 21,062.17
  5. Step 5: Solve for x
    x = 21,062.17/176.97
  6. Step 6: Final answer
    x = 119.02

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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.