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Finding the Fourth Proportional to 193.25, 290.33 and 124.91

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Solution

The fourth proportional to 193.25, 290.33 and 124.91 is: 187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.25 : 290.33 = 124.91 : x
  2. Step 2: Convert to fraction form
    193.25/290.33 = 124.91/x
  3. Step 3: Cross multiply
    193.25x = 290.33 × 124.91
  4. Step 4: Simplify right side
    193.25x = 36,266.16
  5. Step 5: Solve for x
    x = 36,266.16/193.25
  6. Step 6: Final answer
    x = 187.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.