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Finding the Fourth Proportional to 630.09, 943.67 and 608.20

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Solution

The fourth proportional to 630.09, 943.67 and 608.20 is: 910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.09 : 943.67 = 608.20 : x
  2. Step 2: Convert to fraction form
    630.09/943.67 = 608.20/x
  3. Step 3: Cross multiply
    630.09x = 943.67 × 608.20
  4. Step 4: Simplify right side
    630.09x = 573,932.33
  5. Step 5: Solve for x
    x = 573,932.33/630.09
  6. Step 6: Final answer
    x = 910.88

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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.