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Finding the Fourth Proportional to 275.40, 410.67 and 252.32

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Solution

The fourth proportional to 275.40, 410.67 and 252.32 is: 376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.40 : 410.67 = 252.32 : x
  2. Step 2: Convert to fraction form
    275.40/410.67 = 252.32/x
  3. Step 3: Cross multiply
    275.40x = 410.67 × 252.32
  4. Step 4: Simplify right side
    275.40x = 103,618.20
  5. Step 5: Solve for x
    x = 103,618.20/275.40
  6. Step 6: Final answer
    x = 376.25

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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.