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Finding the Fourth Proportional to 630.08, 944.22 and 321.52

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Solution

The fourth proportional to 630.08, 944.22 and 321.52 is: 481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.08 : 944.22 = 321.52 : x
  2. Step 2: Convert to fraction form
    630.08/944.22 = 321.52/x
  3. Step 3: Cross multiply
    630.08x = 944.22 × 321.52
  4. Step 4: Simplify right side
    630.08x = 303,585.61
  5. Step 5: Solve for x
    x = 303,585.61/630.08
  6. Step 6: Final answer
    x = 481.82

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1.5x scale

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.