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Finding the Fourth Proportional to 559.21, 837.96 and 443.17

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Solution

The fourth proportional to 559.21, 837.96 and 443.17 is: 664.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.21 : 837.96 = 443.17 : x
  2. Step 2: Convert to fraction form
    559.21/837.96 = 443.17/x
  3. Step 3: Cross multiply
    559.21x = 837.96 × 443.17
  4. Step 4: Simplify right side
    559.21x = 371,358.73
  5. Step 5: Solve for x
    x = 371,358.73/559.21
  6. Step 6: Final answer
    x = 664.08

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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.