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Finding the Fourth Proportional to 558.85, 837.90 and 298.69

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Solution

The fourth proportional to 558.85, 837.90 and 298.69 is: 447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.85 : 837.90 = 298.69 : x
  2. Step 2: Convert to fraction form
    558.85/837.90 = 298.69/x
  3. Step 3: Cross multiply
    558.85x = 837.90 × 298.69
  4. Step 4: Simplify right side
    558.85x = 250,272.35
  5. Step 5: Solve for x
    x = 250,272.35/558.85
  6. Step 6: Final answer
    x = 447.83

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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.