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Finding the Fourth Proportional to 576.45, 863.73 and 302.13

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Solution

The fourth proportional to 576.45, 863.73 and 302.13 is: 452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.45 : 863.73 = 302.13 : x
  2. Step 2: Convert to fraction form
    576.45/863.73 = 302.13/x
  3. Step 3: Cross multiply
    576.45x = 863.73 × 302.13
  4. Step 4: Simplify right side
    576.45x = 260,958.74
  5. Step 5: Solve for x
    x = 260,958.74/576.45
  6. Step 6: Final answer
    x = 452.70

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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.