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Finding the Fourth Proportional to 225.58, 338.36 and 63.28

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Solution

The fourth proportional to 225.58, 338.36 and 63.28 is: 94.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.58 : 338.36 = 63.28 : x
  2. Step 2: Convert to fraction form
    225.58/338.36 = 63.28/x
  3. Step 3: Cross multiply
    225.58x = 338.36 × 63.28
  4. Step 4: Simplify right side
    225.58x = 21,411.42
  5. Step 5: Solve for x
    x = 21,411.42/225.58
  6. Step 6: Final answer
    x = 94.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.