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Finding the Fourth Proportional to 218,600.85, 327,913.03 and 68,852.87

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Solution

The fourth proportional to 218,600.85, 327,913.03 and 68,852.87 is: 103,283.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,600.85 : 327,913.03 = 68,852.87 : x
  2. Step 2: Convert to fraction form
    218,600.85/327,913.03 = 68,852.87/x
  3. Step 3: Cross multiply
    218,600.85x = 327,913.03 × 68,852.87
  4. Step 4: Simplify right side
    218,600.85x = 22,577,751,586.33
  5. Step 5: Solve for x
    x = 22,577,751,586.33/218,600.85
  6. Step 6: Final answer
    x = 103,283.00

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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.