Home / 276,631.55-381,778.92-161,903.36

Finding the Fourth Proportional to 276,631.55, 381,778.92 and 161,903.36

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Solution

The fourth proportional to 276,631.55, 381,778.92 and 161,903.36 is: 223,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,631.55 : 381,778.92 = 161,903.36 : x
  2. Step 2: Convert to fraction form
    276,631.55/381,778.92 = 161,903.36/x
  3. Step 3: Cross multiply
    276,631.55x = 381,778.92 × 161,903.36
  4. Step 4: Simplify right side
    276,631.55x = 61,811,288,732.11
  5. Step 5: Solve for x
    x = 61,811,288,732.11/276,631.55
  6. Step 6: Final answer
    x = 223,442.65

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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.