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Finding the Fourth Proportional to 581.34, 872.27 and 289.13

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Solution

The fourth proportional to 581.34, 872.27 and 289.13 is: 433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.34 : 872.27 = 289.13 : x
  2. Step 2: Convert to fraction form
    581.34/872.27 = 289.13/x
  3. Step 3: Cross multiply
    581.34x = 872.27 × 289.13
  4. Step 4: Simplify right side
    581.34x = 252,201.24
  5. Step 5: Solve for x
    x = 252,201.24/581.34
  6. Step 6: Final answer
    x = 433.83

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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.