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Finding the Fourth Proportional to 559.86, 839.19 and 267.17

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Solution

The fourth proportional to 559.86, 839.19 and 267.17 is: 400.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.86 : 839.19 = 267.17 : x
  2. Step 2: Convert to fraction form
    559.86/839.19 = 267.17/x
  3. Step 3: Cross multiply
    559.86x = 839.19 × 267.17
  4. Step 4: Simplify right side
    559.86x = 224,208.02
  5. Step 5: Solve for x
    x = 224,208.02/559.86
  6. Step 6: Final answer
    x = 400.47

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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.