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Finding the Fourth Proportional to 630.01, 944.37 and 218.86

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Solution

The fourth proportional to 630.01, 944.37 and 218.86 is: 328.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.01 : 944.37 = 218.86 : x
  2. Step 2: Convert to fraction form
    630.01/944.37 = 218.86/x
  3. Step 3: Cross multiply
    630.01x = 944.37 × 218.86
  4. Step 4: Simplify right side
    630.01x = 206,684.82
  5. Step 5: Solve for x
    x = 206,684.82/630.01
  6. Step 6: Final answer
    x = 328.07

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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.