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Finding the Fourth Proportional to 275.52, 410.56 and 268.16

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Solution

The fourth proportional to 275.52, 410.56 and 268.16 is: 399.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.52 : 410.56 = 268.16 : x
  2. Step 2: Convert to fraction form
    275.52/410.56 = 268.16/x
  3. Step 3: Cross multiply
    275.52x = 410.56 × 268.16
  4. Step 4: Simplify right side
    275.52x = 110,095.77
  5. Step 5: Solve for x
    x = 110,095.77/275.52
  6. Step 6: Final answer
    x = 399.59

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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.