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Finding the Fourth Proportional to 306.32, 456.22 and 302.56

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Solution

The fourth proportional to 306.32, 456.22 and 302.56 is: 450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.32 : 456.22 = 302.56 : x
  2. Step 2: Convert to fraction form
    306.32/456.22 = 302.56/x
  3. Step 3: Cross multiply
    306.32x = 456.22 × 302.56
  4. Step 4: Simplify right side
    306.32x = 138,033.92
  5. Step 5: Solve for x
    x = 138,033.92/306.32
  6. Step 6: Final answer
    x = 450.62

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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.