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Finding the Fourth Proportional to 175.46, 262.95 and 129.98

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Solution

The fourth proportional to 175.46, 262.95 and 129.98 is: 194.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.46 : 262.95 = 129.98 : x
  2. Step 2: Convert to fraction form
    175.46/262.95 = 129.98/x
  3. Step 3: Cross multiply
    175.46x = 262.95 × 129.98
  4. Step 4: Simplify right side
    175.46x = 34,178.24
  5. Step 5: Solve for x
    x = 34,178.24/175.46
  6. Step 6: Final answer
    x = 194.79

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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.