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Finding the Fourth Proportional to 632.10, 871.73 and 539.18

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Solution

The fourth proportional to 632.10, 871.73 and 539.18 is: 743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.10 : 871.73 = 539.18 : x
  2. Step 2: Convert to fraction form
    632.10/871.73 = 539.18/x
  3. Step 3: Cross multiply
    632.10x = 871.73 × 539.18
  4. Step 4: Simplify right side
    632.10x = 470,019.38
  5. Step 5: Solve for x
    x = 470,019.38/632.10
  6. Step 6: Final answer
    x = 743.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.