Home / 276,403.20-381,427.20-155,546.88

Finding the Fourth Proportional to 276,403.20, 381,427.20 and 155,546.88

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Solution

The fourth proportional to 276,403.20, 381,427.20 and 155,546.88 is: 214,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,403.20 : 381,427.20 = 155,546.88 : x
  2. Step 2: Convert to fraction form
    276,403.20/381,427.20 = 155,546.88/x
  3. Step 3: Cross multiply
    276,403.20x = 381,427.20 × 155,546.88
  4. Step 4: Simplify right side
    276,403.20x = 59,329,810,907.14
  5. Step 5: Solve for x
    x = 59,329,810,907.14/276,403.20
  6. Step 6: Final answer
    x = 214,649.51

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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.