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Finding the Fourth Proportional to 293.07, 404.40 and 168.72

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Solution

The fourth proportional to 293.07, 404.40 and 168.72 is: 232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.07 : 404.40 = 168.72 : x
  2. Step 2: Convert to fraction form
    293.07/404.40 = 168.72/x
  3. Step 3: Cross multiply
    293.07x = 404.40 × 168.72
  4. Step 4: Simplify right side
    293.07x = 68,230.37
  5. Step 5: Solve for x
    x = 68,230.37/293.07
  6. Step 6: Final answer
    x = 232.81

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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.