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Finding the Fourth Proportional to 325.04, 487.02 and 170.72

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Solution

The fourth proportional to 325.04, 487.02 and 170.72 is: 255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.04 : 487.02 = 170.72 : x
  2. Step 2: Convert to fraction form
    325.04/487.02 = 170.72/x
  3. Step 3: Cross multiply
    325.04x = 487.02 × 170.72
  4. Step 4: Simplify right side
    325.04x = 83,144.05
  5. Step 5: Solve for x
    x = 83,144.05/325.04
  6. Step 6: Final answer
    x = 255.80

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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.