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Finding the Fourth Proportional to 218,299.80, 301,250.52 and 122,806.56

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Solution

The fourth proportional to 218,299.80, 301,250.52 and 122,806.56 is: 169,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,299.80 : 301,250.52 = 122,806.56 : x
  2. Step 2: Convert to fraction form
    218,299.80/301,250.52 = 122,806.56/x
  3. Step 3: Cross multiply
    218,299.80x = 301,250.52 × 122,806.56
  4. Step 4: Simplify right side
    218,299.80x = 36,995,540,059.41
  5. Step 5: Solve for x
    x = 36,995,540,059.41/218,299.80
  6. Step 6: Final answer
    x = 169,471.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.