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Finding the Fourth Proportional to 306.97, 460.15 and 124.25

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Solution

The fourth proportional to 306.97, 460.15 and 124.25 is: 186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.97 : 460.15 = 124.25 : x
  2. Step 2: Convert to fraction form
    306.97/460.15 = 124.25/x
  3. Step 3: Cross multiply
    306.97x = 460.15 × 124.25
  4. Step 4: Simplify right side
    306.97x = 57,173.64
  5. Step 5: Solve for x
    x = 57,173.64/306.97
  6. Step 6: Final answer
    x = 186.25

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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.