Home / 276,335.21-381,346.09-155,476.73

Finding the Fourth Proportional to 276,335.21, 381,346.09 and 155,476.73

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Solution

The fourth proportional to 276,335.21, 381,346.09 and 155,476.73 is: 214,559.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,335.21 : 381,346.09 = 155,476.73 : x
  2. Step 2: Convert to fraction form
    276,335.21/381,346.09 = 155,476.73/x
  3. Step 3: Cross multiply
    276,335.21x = 381,346.09 × 155,476.73
  4. Step 4: Simplify right side
    276,335.21x = 59,290,443,636.16
  5. Step 5: Solve for x
    x = 59,290,443,636.16/276,335.21
  6. Step 6: Final answer
    x = 214,559.86

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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.