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Finding the Fourth Proportional to 948.46, 1,422.48 and 363.32

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Solution

The fourth proportional to 948.46, 1,422.48 and 363.32 is: 544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    948.46 : 1,422.48 = 363.32 : x
  2. Step 2: Convert to fraction form
    948.46/1,422.48 = 363.32/x
  3. Step 3: Cross multiply
    948.46x = 1,422.48 × 363.32
  4. Step 4: Simplify right side
    948.46x = 516,812.97
  5. Step 5: Solve for x
    x = 516,812.97/948.46
  6. Step 6: Final answer
    x = 544.90

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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.