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Finding the Fourth Proportional to 293.91, 405.54 and 169.53

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Solution

The fourth proportional to 293.91, 405.54 and 169.53 is: 233.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.91 : 405.54 = 169.53 : x
  2. Step 2: Convert to fraction form
    293.91/405.54 = 169.53/x
  3. Step 3: Cross multiply
    293.91x = 405.54 × 169.53
  4. Step 4: Simplify right side
    293.91x = 68,751.20
  5. Step 5: Solve for x
    x = 68,751.20/293.91
  6. Step 6: Final answer
    x = 233.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.