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Finding the Fourth Proportional to 634.68, 951.58 and 218.10

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Solution

The fourth proportional to 634.68, 951.58 and 218.10 is: 327.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.68 : 951.58 = 218.10 : x
  2. Step 2: Convert to fraction form
    634.68/951.58 = 218.10/x
  3. Step 3: Cross multiply
    634.68x = 951.58 × 218.10
  4. Step 4: Simplify right side
    634.68x = 207,536.30
  5. Step 5: Solve for x
    x = 207,536.30/634.68
  6. Step 6: Final answer
    x = 327.00

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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.