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Finding the Fourth Proportional to 239.44, 330.43 and 152.27

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Solution

The fourth proportional to 239.44, 330.43 and 152.27 is: 210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.44 : 330.43 = 152.27 : x
  2. Step 2: Convert to fraction form
    239.44/330.43 = 152.27/x
  3. Step 3: Cross multiply
    239.44x = 330.43 × 152.27
  4. Step 4: Simplify right side
    239.44x = 50,314.58
  5. Step 5: Solve for x
    x = 50,314.58/239.44
  6. Step 6: Final answer
    x = 210.13

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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.