Home / 276,440.30-381,499.88-155,589.41

Finding the Fourth Proportional to 276,440.30, 381,499.88 and 155,589.41

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Solution

The fourth proportional to 276,440.30, 381,499.88 and 155,589.41 is: 214,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,440.30 : 381,499.88 = 155,589.41 : x
  2. Step 2: Convert to fraction form
    276,440.30/381,499.88 = 155,589.41/x
  3. Step 3: Cross multiply
    276,440.30x = 381,499.88 × 155,589.41
  4. Step 4: Simplify right side
    276,440.30x = 59,357,338,558.82
  5. Step 5: Solve for x
    x = 59,357,338,558.82/276,440.30
  6. Step 6: Final answer
    x = 214,720.28

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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.