Home / 276,624.14-381,777.65-155,789.04

Finding the Fourth Proportional to 276,624.14, 381,777.65 and 155,789.04

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Solution

The fourth proportional to 276,624.14, 381,777.65 and 155,789.04 is: 215,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,624.14 : 381,777.65 = 155,789.04 : x
  2. Step 2: Convert to fraction form
    276,624.14/381,777.65 = 155,789.04/x
  3. Step 3: Cross multiply
    276,624.14x = 381,777.65 × 155,789.04
  4. Step 4: Simplify right side
    276,624.14x = 59,476,772,808.01
  5. Step 5: Solve for x
    x = 59,476,772,808.01/276,624.14
  6. Step 6: Final answer
    x = 215,009.34

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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.