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Finding the Fourth Proportional to 152.06, 226.65 and 143.18

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Solution

The fourth proportional to 152.06, 226.65 and 143.18 is: 213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.06 : 226.65 = 143.18 : x
  2. Step 2: Convert to fraction form
    152.06/226.65 = 143.18/x
  3. Step 3: Cross multiply
    152.06x = 226.65 × 143.18
  4. Step 4: Simplify right side
    152.06x = 32,452.47
  5. Step 5: Solve for x
    x = 32,452.47/152.06
  6. Step 6: Final answer
    x = 213.42

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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.