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Finding the Fourth Proportional to 581.85, 872.51 and 273.78

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Solution

The fourth proportional to 581.85, 872.51 and 273.78 is: 410.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.85 : 872.51 = 273.78 : x
  2. Step 2: Convert to fraction form
    581.85/872.51 = 273.78/x
  3. Step 3: Cross multiply
    581.85x = 872.51 × 273.78
  4. Step 4: Simplify right side
    581.85x = 238,874.42
  5. Step 5: Solve for x
    x = 238,874.42/581.85
  6. Step 6: Final answer
    x = 410.54

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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.