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Finding the Fourth Proportional to 559.11, 838.79 and 169.10

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Solution

The fourth proportional to 559.11, 838.79 and 169.10 is: 253.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.11 : 838.79 = 169.10 : x
  2. Step 2: Convert to fraction form
    559.11/838.79 = 169.10/x
  3. Step 3: Cross multiply
    559.11x = 838.79 × 169.10
  4. Step 4: Simplify right side
    559.11x = 141,841.01
  5. Step 5: Solve for x
    x = 141,841.01/559.11
  6. Step 6: Final answer
    x = 253.69

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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.