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Finding the Fourth Proportional to 555.50, 833.88 and 324.56

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Solution

The fourth proportional to 555.50, 833.88 and 324.56 is: 487.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.50 : 833.88 = 324.56 : x
  2. Step 2: Convert to fraction form
    555.50/833.88 = 324.56/x
  3. Step 3: Cross multiply
    555.50x = 833.88 × 324.56
  4. Step 4: Simplify right side
    555.50x = 270,644.09
  5. Step 5: Solve for x
    x = 270,644.09/555.50
  6. Step 6: Final answer
    x = 487.21

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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.