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Finding the Fourth Proportional to 453.32, 679.91 and 164.75

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Solution

The fourth proportional to 453.32, 679.91 and 164.75 is: 247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.32 : 679.91 = 164.75 : x
  2. Step 2: Convert to fraction form
    453.32/679.91 = 164.75/x
  3. Step 3: Cross multiply
    453.32x = 679.91 × 164.75
  4. Step 4: Simplify right side
    453.32x = 112,016.05
  5. Step 5: Solve for x
    x = 112,016.05/453.32
  6. Step 6: Final answer
    x = 247.10

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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.