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Finding the Fourth Proportional to 534.95, 802.34 and 169.69

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Solution

The fourth proportional to 534.95, 802.34 and 169.69 is: 254.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.95 : 802.34 = 169.69 : x
  2. Step 2: Convert to fraction form
    534.95/802.34 = 169.69/x
  3. Step 3: Cross multiply
    534.95x = 802.34 × 169.69
  4. Step 4: Simplify right side
    534.95x = 136,146.86
  5. Step 5: Solve for x
    x = 136,146.86/534.95
  6. Step 6: Final answer
    x = 254.51

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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.