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Finding the Fourth Proportional to 175.97, 263.76 and 130.21

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Solution

The fourth proportional to 175.97, 263.76 and 130.21 is: 195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.97 : 263.76 = 130.21 : x
  2. Step 2: Convert to fraction form
    175.97/263.76 = 130.21/x
  3. Step 3: Cross multiply
    175.97x = 263.76 × 130.21
  4. Step 4: Simplify right side
    175.97x = 34,343.04
  5. Step 5: Solve for x
    x = 34,343.04/175.97
  6. Step 6: Final answer
    x = 195.16

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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.