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Finding the Fourth Proportional to 252.86, 349.20 and 170.06

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Solution

The fourth proportional to 252.86, 349.20 and 170.06 is: 234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.86 : 349.20 = 170.06 : x
  2. Step 2: Convert to fraction form
    252.86/349.20 = 170.06/x
  3. Step 3: Cross multiply
    252.86x = 349.20 × 170.06
  4. Step 4: Simplify right side
    252.86x = 59,384.95
  5. Step 5: Solve for x
    x = 59,384.95/252.86
  6. Step 6: Final answer
    x = 234.85

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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.