Home / 280,371.75-386,913.38-179,769.75

Finding the Fourth Proportional to 280,371.75, 386,913.38 and 179,769.75

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Solution

The fourth proportional to 280,371.75, 386,913.38 and 179,769.75 is: 248,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,371.75 : 386,913.38 = 179,769.75 : x
  2. Step 2: Convert to fraction form
    280,371.75/386,913.38 = 179,769.75/x
  3. Step 3: Cross multiply
    280,371.75x = 386,913.38 × 179,769.75
  4. Step 4: Simplify right side
    280,371.75x = 69,555,320,695.41
  5. Step 5: Solve for x
    x = 69,555,320,695.41/280,371.75
  6. Step 6: Final answer
    x = 248,082.49

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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.