Home / 225,419.15-311,084.22-123,450.23

Finding the Fourth Proportional to 225,419.15, 311,084.22 and 123,450.23

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Solution

The fourth proportional to 225,419.15, 311,084.22 and 123,450.23 is: 170,364.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,419.15 : 311,084.22 = 123,450.23 : x
  2. Step 2: Convert to fraction form
    225,419.15/311,084.22 = 123,450.23/x
  3. Step 3: Cross multiply
    225,419.15x = 311,084.22 × 123,450.23
  4. Step 4: Simplify right side
    225,419.15x = 38,403,416,952.95
  5. Step 5: Solve for x
    x = 38,403,416,952.95/225,419.15
  6. Step 6: Final answer
    x = 170,364.49

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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.