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Finding the Fourth Proportional to 538.10, 807.17 and 167.94

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Solution

The fourth proportional to 538.10, 807.17 and 167.94 is: 251.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.10 : 807.17 = 167.94 : x
  2. Step 2: Convert to fraction form
    538.10/807.17 = 167.94/x
  3. Step 3: Cross multiply
    538.10x = 807.17 × 167.94
  4. Step 4: Simplify right side
    538.10x = 135,555.29
  5. Step 5: Solve for x
    x = 135,555.29/538.10
  6. Step 6: Final answer
    x = 251.91

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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.