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Finding the Fourth Proportional to 239.26, 330.18 and 146.02

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Solution

The fourth proportional to 239.26, 330.18 and 146.02 is: 201.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.26 : 330.18 = 146.02 : x
  2. Step 2: Convert to fraction form
    239.26/330.18 = 146.02/x
  3. Step 3: Cross multiply
    239.26x = 330.18 × 146.02
  4. Step 4: Simplify right side
    239.26x = 48,212.88
  5. Step 5: Solve for x
    x = 48,212.88/239.26
  6. Step 6: Final answer
    x = 201.51

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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.