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Finding the Fourth Proportional to 240.06, 330.49 and 215.46

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Solution

The fourth proportional to 240.06, 330.49 and 215.46 is: 296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.06 : 330.49 = 215.46 : x
  2. Step 2: Convert to fraction form
    240.06/330.49 = 215.46/x
  3. Step 3: Cross multiply
    240.06x = 330.49 × 215.46
  4. Step 4: Simplify right side
    240.06x = 71,204.65
  5. Step 5: Solve for x
    x = 71,204.65/240.06
  6. Step 6: Final answer
    x = 296.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.