Home / 276,618.36-381,738.24-163,440.84

Finding the Fourth Proportional to 276,618.36, 381,738.24 and 163,440.84

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Solution

The fourth proportional to 276,618.36, 381,738.24 and 163,440.84 is: 225,551.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,618.36 : 381,738.24 = 163,440.84 : x
  2. Step 2: Convert to fraction form
    276,618.36/381,738.24 = 163,440.84/x
  3. Step 3: Cross multiply
    276,618.36x = 381,738.24 × 163,440.84
  4. Step 4: Simplify right side
    276,618.36x = 62,391,618,605.72
  5. Step 5: Solve for x
    x = 62,391,618,605.72/276,618.36
  6. Step 6: Final answer
    x = 225,551.26

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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.