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Finding the Fourth Proportional to 353.06, 527.11 and 318.50

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Solution

The fourth proportional to 353.06, 527.11 and 318.50 is: 475.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.06 : 527.11 = 318.50 : x
  2. Step 2: Convert to fraction form
    353.06/527.11 = 318.50/x
  3. Step 3: Cross multiply
    353.06x = 527.11 × 318.50
  4. Step 4: Simplify right side
    353.06x = 167,884.54
  5. Step 5: Solve for x
    x = 167,884.54/353.06
  6. Step 6: Final answer
    x = 475.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.