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Finding the Fourth Proportional to 225,751.95, 311,540.69 and 123,777.18

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Solution

The fourth proportional to 225,751.95, 311,540.69 and 123,777.18 is: 170,814.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,751.95 : 311,540.69 = 123,777.18 : x
  2. Step 2: Convert to fraction form
    225,751.95/311,540.69 = 123,777.18/x
  3. Step 3: Cross multiply
    225,751.95x = 311,540.69 × 123,777.18
  4. Step 4: Simplify right side
    225,751.95x = 38,561,627,444.57
  5. Step 5: Solve for x
    x = 38,561,627,444.57/225,751.95
  6. Step 6: Final answer
    x = 170,814.15

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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.