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Finding the Fourth Proportional to 471.12, 704.88 and 325.92

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Solution

The fourth proportional to 471.12, 704.88 and 325.92 is: 487.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.12 : 704.88 = 325.92 : x
  2. Step 2: Convert to fraction form
    471.12/704.88 = 325.92/x
  3. Step 3: Cross multiply
    471.12x = 704.88 × 325.92
  4. Step 4: Simplify right side
    471.12x = 229,734.49
  5. Step 5: Solve for x
    x = 229,734.49/471.12
  6. Step 6: Final answer
    x = 487.63

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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.