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Finding the Fourth Proportional to 576.13, 863.43 and 210.58

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Solution

The fourth proportional to 576.13, 863.43 and 210.58 is: 315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.13 : 863.43 = 210.58 : x
  2. Step 2: Convert to fraction form
    576.13/863.43 = 210.58/x
  3. Step 3: Cross multiply
    576.13x = 863.43 × 210.58
  4. Step 4: Simplify right side
    576.13x = 181,821.09
  5. Step 5: Solve for x
    x = 181,821.09/576.13
  6. Step 6: Final answer
    x = 315.59

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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.