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Finding the Fourth Proportional to 559.87, 839.52 and 354.85

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Solution

The fourth proportional to 559.87, 839.52 and 354.85 is: 532.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.87 : 839.52 = 354.85 : x
  2. Step 2: Convert to fraction form
    559.87/839.52 = 354.85/x
  3. Step 3: Cross multiply
    559.87x = 839.52 × 354.85
  4. Step 4: Simplify right side
    559.87x = 297,901.57
  5. Step 5: Solve for x
    x = 297,901.57/559.87
  6. Step 6: Final answer
    x = 532.09

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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.