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Finding the Fourth Proportional to 574.04, 861.50 and 300.22

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Solution

The fourth proportional to 574.04, 861.50 and 300.22 is: 450.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.04 : 861.50 = 300.22 : x
  2. Step 2: Convert to fraction form
    574.04/861.50 = 300.22/x
  3. Step 3: Cross multiply
    574.04x = 861.50 × 300.22
  4. Step 4: Simplify right side
    574.04x = 258,638.13
  5. Step 5: Solve for x
    x = 258,638.13/574.04
  6. Step 6: Final answer
    x = 450.56

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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.