Home / 225,826.28-311,640.27-125,224.28

Finding the Fourth Proportional to 225,826.28, 311,640.27 and 125,224.28

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Solution

The fourth proportional to 225,826.28, 311,640.27 and 125,224.28 is: 172,809.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,826.28 : 311,640.27 = 125,224.28 : x
  2. Step 2: Convert to fraction form
    225,826.28/311,640.27 = 125,224.28/x
  3. Step 3: Cross multiply
    225,826.28x = 311,640.27 × 125,224.28
  4. Step 4: Simplify right side
    225,826.28x = 39,024,927,570.61
  5. Step 5: Solve for x
    x = 39,024,927,570.61/225,826.28
  6. Step 6: Final answer
    x = 172,809.51

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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.