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Finding the Fourth Proportional to 240.66, 360.32 and 137.79

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Solution

The fourth proportional to 240.66, 360.32 and 137.79 is: 206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.66 : 360.32 = 137.79 : x
  2. Step 2: Convert to fraction form
    240.66/360.32 = 137.79/x
  3. Step 3: Cross multiply
    240.66x = 360.32 × 137.79
  4. Step 4: Simplify right side
    240.66x = 49,647.80
  5. Step 5: Solve for x
    x = 49,647.80/240.66
  6. Step 6: Final answer
    x = 206.30

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