Home / 276,826.55-381,995.60-155,987.51

Finding the Fourth Proportional to 276,826.55, 381,995.60 and 155,987.51

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Solution

The fourth proportional to 276,826.55, 381,995.60 and 155,987.51 is: 215,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,826.55 : 381,995.60 = 155,987.51 : x
  2. Step 2: Convert to fraction form
    276,826.55/381,995.60 = 155,987.51/x
  3. Step 3: Cross multiply
    276,826.55x = 381,995.60 × 155,987.51
  4. Step 4: Simplify right side
    276,826.55x = 59,586,539,785.04
  5. Step 5: Solve for x
    x = 59,586,539,785.04/276,826.55
  6. Step 6: Final answer
    x = 215,248.65

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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.