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Finding the Fourth Proportional to 147.38, 203.22 and 125.24

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Solution

The fourth proportional to 147.38, 203.22 and 125.24 is: 172.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.38 : 203.22 = 125.24 : x
  2. Step 2: Convert to fraction form
    147.38/203.22 = 125.24/x
  3. Step 3: Cross multiply
    147.38x = 203.22 × 125.24
  4. Step 4: Simplify right side
    147.38x = 25,451.27
  5. Step 5: Solve for x
    x = 25,451.27/147.38
  6. Step 6: Final answer
    x = 172.69

Related Problems

Find fourth proportional to 73.69, 101.61 and 62.62
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1.5x scale

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.