Home / 276,216.06-381,174.39-155,357.31

Finding the Fourth Proportional to 276,216.06, 381,174.39 and 155,357.31

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Solution

The fourth proportional to 276,216.06, 381,174.39 and 155,357.31 is: 214,390.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,216.06 : 381,174.39 = 155,357.31 : x
  2. Step 2: Convert to fraction form
    276,216.06/381,174.39 = 155,357.31/x
  3. Step 3: Cross multiply
    276,216.06x = 381,174.39 × 155,357.31
  4. Step 4: Simplify right side
    276,216.06x = 59,218,227,871.29
  5. Step 5: Solve for x
    x = 59,218,227,871.29/276,216.06
  6. Step 6: Final answer
    x = 214,390.97

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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.