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Finding the Fourth Proportional to 152.82, 227.88 and 145.26

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Solution

The fourth proportional to 152.82, 227.88 and 145.26 is: 216.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.82 : 227.88 = 145.26 : x
  2. Step 2: Convert to fraction form
    152.82/227.88 = 145.26/x
  3. Step 3: Cross multiply
    152.82x = 227.88 × 145.26
  4. Step 4: Simplify right side
    152.82x = 33,101.85
  5. Step 5: Solve for x
    x = 33,101.85/152.82
  6. Step 6: Final answer
    x = 216.61

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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.