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Finding the Fourth Proportional to 534.69, 802.11 and 169.56

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Solution

The fourth proportional to 534.69, 802.11 and 169.56 is: 254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.69 : 802.11 = 169.56 : x
  2. Step 2: Convert to fraction form
    534.69/802.11 = 169.56/x
  3. Step 3: Cross multiply
    534.69x = 802.11 × 169.56
  4. Step 4: Simplify right side
    534.69x = 136,006.41
  5. Step 5: Solve for x
    x = 136,006.41/534.69
  6. Step 6: Final answer
    x = 254.37

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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.