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Finding the Fourth Proportional to 275.03, 414.18 and 239.39

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Solution

The fourth proportional to 275.03, 414.18 and 239.39 is: 360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.03 : 414.18 = 239.39 : x
  2. Step 2: Convert to fraction form
    275.03/414.18 = 239.39/x
  3. Step 3: Cross multiply
    275.03x = 414.18 × 239.39
  4. Step 4: Simplify right side
    275.03x = 99,149.35
  5. Step 5: Solve for x
    x = 99,149.35/275.03
  6. Step 6: Final answer
    x = 360.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.