Home / 276,767.28-381,943.08-163,600.56

Finding the Fourth Proportional to 276,767.28, 381,943.08 and 163,600.56

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Solution

The fourth proportional to 276,767.28, 381,943.08 and 163,600.56 is: 225,771.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,767.28 : 381,943.08 = 163,600.56 : x
  2. Step 2: Convert to fraction form
    276,767.28/381,943.08 = 163,600.56/x
  3. Step 3: Cross multiply
    276,767.28x = 381,943.08 × 163,600.56
  4. Step 4: Simplify right side
    276,767.28x = 62,486,101,776.12
  5. Step 5: Solve for x
    x = 62,486,101,776.12/276,767.28
  6. Step 6: Final answer
    x = 225,771.28

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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.