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Finding the Fourth Proportional to 170.41, 254.72 and 147.53

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Solution

The fourth proportional to 170.41, 254.72 and 147.53 is: 220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.41 : 254.72 = 147.53 : x
  2. Step 2: Convert to fraction form
    170.41/254.72 = 147.53/x
  3. Step 3: Cross multiply
    170.41x = 254.72 × 147.53
  4. Step 4: Simplify right side
    170.41x = 37,578.84
  5. Step 5: Solve for x
    x = 37,578.84/170.41
  6. Step 6: Final answer
    x = 220.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.