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Finding the Fourth Proportional to 581.55, 871.90 and 273.24

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Solution

The fourth proportional to 581.55, 871.90 and 273.24 is: 409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.55 : 871.90 = 273.24 : x
  2. Step 2: Convert to fraction form
    581.55/871.90 = 273.24/x
  3. Step 3: Cross multiply
    581.55x = 871.90 × 273.24
  4. Step 4: Simplify right side
    581.55x = 238,236.59
  5. Step 5: Solve for x
    x = 238,236.59/581.55
  6. Step 6: Final answer
    x = 409.66

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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.