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Finding the Fourth Proportional to 326.36, 488.66 and 249.14

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Solution

The fourth proportional to 326.36, 488.66 and 249.14 is: 373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.36 : 488.66 = 249.14 : x
  2. Step 2: Convert to fraction form
    326.36/488.66 = 249.14/x
  3. Step 3: Cross multiply
    326.36x = 488.66 × 249.14
  4. Step 4: Simplify right side
    326.36x = 121,744.75
  5. Step 5: Solve for x
    x = 121,744.75/326.36
  6. Step 6: Final answer
    x = 373.04

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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.