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Finding the Fourth Proportional to 169.58, 254.55 and 73.46

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Solution

The fourth proportional to 169.58, 254.55 and 73.46 is: 110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.58 : 254.55 = 73.46 : x
  2. Step 2: Convert to fraction form
    169.58/254.55 = 73.46/x
  3. Step 3: Cross multiply
    169.58x = 254.55 × 73.46
  4. Step 4: Simplify right side
    169.58x = 18,699.24
  5. Step 5: Solve for x
    x = 18,699.24/169.58
  6. Step 6: Final answer
    x = 110.27

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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.