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Finding the Fourth Proportional to 252.90, 348.94 and 147.95

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Solution

The fourth proportional to 252.90, 348.94 and 147.95 is: 204.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.90 : 348.94 = 147.95 : x
  2. Step 2: Convert to fraction form
    252.90/348.94 = 147.95/x
  3. Step 3: Cross multiply
    252.90x = 348.94 × 147.95
  4. Step 4: Simplify right side
    252.90x = 51,625.67
  5. Step 5: Solve for x
    x = 51,625.67/252.90
  6. Step 6: Final answer
    x = 204.13

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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.