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Finding the Fourth Proportional to 275.95, 414.13 and 239.91

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Solution

The fourth proportional to 275.95, 414.13 and 239.91 is: 360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.95 : 414.13 = 239.91 : x
  2. Step 2: Convert to fraction form
    275.95/414.13 = 239.91/x
  3. Step 3: Cross multiply
    275.95x = 414.13 × 239.91
  4. Step 4: Simplify right side
    275.95x = 99,350.66
  5. Step 5: Solve for x
    x = 99,350.66/275.95
  6. Step 6: Final answer
    x = 360.03

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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.