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Finding the Fourth Proportional to 456.44, 685.14 and 294.26

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Solution

The fourth proportional to 456.44, 685.14 and 294.26 is: 441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.44 : 685.14 = 294.26 : x
  2. Step 2: Convert to fraction form
    456.44/685.14 = 294.26/x
  3. Step 3: Cross multiply
    456.44x = 685.14 × 294.26
  4. Step 4: Simplify right side
    456.44x = 201,609.30
  5. Step 5: Solve for x
    x = 201,609.30/456.44
  6. Step 6: Final answer
    x = 441.70

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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.