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Finding the Fourth Proportional to 218,039.80, 327,059.70 and 188,515.30

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Solution

The fourth proportional to 218,039.80, 327,059.70 and 188,515.30 is: 282,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,039.80 : 327,059.70 = 188,515.30 : x
  2. Step 2: Convert to fraction form
    218,039.80/327,059.70 = 188,515.30/x
  3. Step 3: Cross multiply
    218,039.80x = 327,059.70 × 188,515.30
  4. Step 4: Simplify right side
    218,039.80x = 61,655,757,463.41
  5. Step 5: Solve for x
    x = 61,655,757,463.41/218,039.80
  6. Step 6: Final answer
    x = 282,772.95

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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.