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Finding the Fourth Proportional to 265.71, 396.24 and 263.28

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Solution

The fourth proportional to 265.71, 396.24 and 263.28 is: 392.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.71 : 396.24 = 263.28 : x
  2. Step 2: Convert to fraction form
    265.71/396.24 = 263.28/x
  3. Step 3: Cross multiply
    265.71x = 396.24 × 263.28
  4. Step 4: Simplify right side
    265.71x = 104,322.07
  5. Step 5: Solve for x
    x = 104,322.07/265.71
  6. Step 6: Final answer
    x = 392.62

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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.