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Finding the Fourth Proportional to 576.26, 864.27 and 165.39

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Solution

The fourth proportional to 576.26, 864.27 and 165.39 is: 248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.26 : 864.27 = 165.39 : x
  2. Step 2: Convert to fraction form
    576.26/864.27 = 165.39/x
  3. Step 3: Cross multiply
    576.26x = 864.27 × 165.39
  4. Step 4: Simplify right side
    576.26x = 142,943.24
  5. Step 5: Solve for x
    x = 142,943.24/576.26
  6. Step 6: Final answer
    x = 248.05

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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.