Home / 276,141.21-381,080.04-161,429.65

Finding the Fourth Proportional to 276,141.21, 381,080.04 and 161,429.65

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Solution

The fourth proportional to 276,141.21, 381,080.04 and 161,429.65 is: 222,775.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,141.21 : 381,080.04 = 161,429.65 : x
  2. Step 2: Convert to fraction form
    276,141.21/381,080.04 = 161,429.65/x
  3. Step 3: Cross multiply
    276,141.21x = 381,080.04 × 161,429.65
  4. Step 4: Simplify right side
    276,141.21x = 61,517,617,479.19
  5. Step 5: Solve for x
    x = 61,517,617,479.19/276,141.21
  6. Step 6: Final answer
    x = 222,775.94

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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.