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Finding the Fourth Proportional to 555.96, 834.44 and 282.20

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Solution

The fourth proportional to 555.96, 834.44 and 282.20 is: 423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.96 : 834.44 = 282.20 : x
  2. Step 2: Convert to fraction form
    555.96/834.44 = 282.20/x
  3. Step 3: Cross multiply
    555.96x = 834.44 × 282.20
  4. Step 4: Simplify right side
    555.96x = 235,478.08
  5. Step 5: Solve for x
    x = 235,478.08/555.96
  6. Step 6: Final answer
    x = 423.55

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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.