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Finding the Fourth Proportional to 632.18, 945.81 and 550.85

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Solution

The fourth proportional to 632.18, 945.81 and 550.85 is: 824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.18 : 945.81 = 550.85 : x
  2. Step 2: Convert to fraction form
    632.18/945.81 = 550.85/x
  3. Step 3: Cross multiply
    632.18x = 945.81 × 550.85
  4. Step 4: Simplify right side
    632.18x = 520,994.71
  5. Step 5: Solve for x
    x = 520,994.71/632.18
  6. Step 6: Final answer
    x = 824.12

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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.