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Finding the Fourth Proportional to 146.33, 218.45 and 130.13

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Solution

The fourth proportional to 146.33, 218.45 and 130.13 is: 194.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.33 : 218.45 = 130.13 : x
  2. Step 2: Convert to fraction form
    146.33/218.45 = 130.13/x
  3. Step 3: Cross multiply
    146.33x = 218.45 × 130.13
  4. Step 4: Simplify right side
    146.33x = 28,425.64
  5. Step 5: Solve for x
    x = 28,425.64/146.33
  6. Step 6: Final answer
    x = 194.26

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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.