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Finding the Fourth Proportional to 948.26, 1,422.20 and 363.08

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Solution

The fourth proportional to 948.26, 1,422.20 and 363.08 is: 544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    948.26 : 1,422.20 = 363.08 : x
  2. Step 2: Convert to fraction form
    948.26/1,422.20 = 363.08/x
  3. Step 3: Cross multiply
    948.26x = 1,422.20 × 363.08
  4. Step 4: Simplify right side
    948.26x = 516,372.38
  5. Step 5: Solve for x
    x = 516,372.38/948.26
  6. Step 6: Final answer
    x = 544.55

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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.