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Finding the Fourth Proportional to 275.53, 414.93 and 239.89

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Solution

The fourth proportional to 275.53, 414.93 and 239.89 is: 361.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.53 : 414.93 = 239.89 : x
  2. Step 2: Convert to fraction form
    275.53/414.93 = 239.89/x
  3. Step 3: Cross multiply
    275.53x = 414.93 × 239.89
  4. Step 4: Simplify right side
    275.53x = 99,537.56
  5. Step 5: Solve for x
    x = 99,537.56/275.53
  6. Step 6: Final answer
    x = 361.26

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