Home / 276,786.72-381,966.84-155,929.46

Finding the Fourth Proportional to 276,786.72, 381,966.84 and 155,929.46

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Solution

The fourth proportional to 276,786.72, 381,966.84 and 155,929.46 is: 215,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,786.72 : 381,966.84 = 155,929.46 : x
  2. Step 2: Convert to fraction form
    276,786.72/381,966.84 = 155,929.46/x
  3. Step 3: Cross multiply
    276,786.72x = 381,966.84 × 155,929.46
  4. Step 4: Simplify right side
    276,786.72x = 59,559,881,189.27
  5. Step 5: Solve for x
    x = 59,559,881,189.27/276,786.72
  6. Step 6: Final answer
    x = 215,183.30

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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.