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Finding the Fourth Proportional to 225,552.57, 311,275.61 and 123,578.22

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Solution

The fourth proportional to 225,552.57, 311,275.61 and 123,578.22 is: 170,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,552.57 : 311,275.61 = 123,578.22 : x
  2. Step 2: Convert to fraction form
    225,552.57/311,275.61 = 123,578.22/x
  3. Step 3: Cross multiply
    225,552.57x = 311,275.61 × 123,578.22
  4. Step 4: Simplify right side
    225,552.57x = 38,466,886,826.03
  5. Step 5: Solve for x
    x = 38,466,886,826.03/225,552.57
  6. Step 6: Final answer
    x = 170,545.11

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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.