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Finding the Fourth Proportional to 252.84, 376.90 and 239.16

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Solution

The fourth proportional to 252.84, 376.90 and 239.16 is: 356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.84 : 376.90 = 239.16 : x
  2. Step 2: Convert to fraction form
    252.84/376.90 = 239.16/x
  3. Step 3: Cross multiply
    252.84x = 376.90 × 239.16
  4. Step 4: Simplify right side
    252.84x = 90,139.40
  5. Step 5: Solve for x
    x = 90,139.40/252.84
  6. Step 6: Final answer
    x = 356.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.