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Finding the Fourth Proportional to 265.73, 398.12 and 163.13

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Solution

The fourth proportional to 265.73, 398.12 and 163.13 is: 244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.73 : 398.12 = 163.13 : x
  2. Step 2: Convert to fraction form
    265.73/398.12 = 163.13/x
  3. Step 3: Cross multiply
    265.73x = 398.12 × 163.13
  4. Step 4: Simplify right side
    265.73x = 64,942.51
  5. Step 5: Solve for x
    x = 64,942.51/265.73
  6. Step 6: Final answer
    x = 244.40

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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.