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Finding the Fourth Proportional to 326.27, 487.04 and 302.18

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Solution

The fourth proportional to 326.27, 487.04 and 302.18 is: 451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.27 : 487.04 = 302.18 : x
  2. Step 2: Convert to fraction form
    326.27/487.04 = 302.18/x
  3. Step 3: Cross multiply
    326.27x = 487.04 × 302.18
  4. Step 4: Simplify right side
    326.27x = 147,173.75
  5. Step 5: Solve for x
    x = 147,173.75/326.27
  6. Step 6: Final answer
    x = 451.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.