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Finding the Fourth Proportional to 631.73, 944.27 and 548.81

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Solution

The fourth proportional to 631.73, 944.27 and 548.81 is: 820.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.73 : 944.27 = 548.81 : x
  2. Step 2: Convert to fraction form
    631.73/944.27 = 548.81/x
  3. Step 3: Cross multiply
    631.73x = 944.27 × 548.81
  4. Step 4: Simplify right side
    631.73x = 518,217.35
  5. Step 5: Solve for x
    x = 518,217.35/631.73
  6. Step 6: Final answer
    x = 820.32

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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.