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Finding the Fourth Proportional to 559.60, 839.43 and 169.58

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Solution

The fourth proportional to 559.60, 839.43 and 169.58 is: 254.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.60 : 839.43 = 169.58 : x
  2. Step 2: Convert to fraction form
    559.60/839.43 = 169.58/x
  3. Step 3: Cross multiply
    559.60x = 839.43 × 169.58
  4. Step 4: Simplify right side
    559.60x = 142,352.64
  5. Step 5: Solve for x
    x = 142,352.64/559.60
  6. Step 6: Final answer
    x = 254.38

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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.