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Finding the Fourth Proportional to 456.23, 628.46 and 325.01

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Solution

The fourth proportional to 456.23, 628.46 and 325.01 is: 447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.23 : 628.46 = 325.01 : x
  2. Step 2: Convert to fraction form
    456.23/628.46 = 325.01/x
  3. Step 3: Cross multiply
    456.23x = 628.46 × 325.01
  4. Step 4: Simplify right side
    456.23x = 204,256.95
  5. Step 5: Solve for x
    x = 204,256.95/456.23
  6. Step 6: Final answer
    x = 447.70

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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.