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Finding the Fourth Proportional to 305.06, 456.02 and 227.30

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Solution

The fourth proportional to 305.06, 456.02 and 227.30 is: 339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.06 : 456.02 = 227.30 : x
  2. Step 2: Convert to fraction form
    305.06/456.02 = 227.30/x
  3. Step 3: Cross multiply
    305.06x = 456.02 × 227.30
  4. Step 4: Simplify right side
    305.06x = 103,653.35
  5. Step 5: Solve for x
    x = 103,653.35/305.06
  6. Step 6: Final answer
    x = 339.78

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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.