Home / 276,200.24-381,112.38-155,318.15

Finding the Fourth Proportional to 276,200.24, 381,112.38 and 155,318.15

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Solution

The fourth proportional to 276,200.24, 381,112.38 and 155,318.15 is: 214,314.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,200.24 : 381,112.38 = 155,318.15 : x
  2. Step 2: Convert to fraction form
    276,200.24/381,112.38 = 155,318.15/x
  3. Step 3: Cross multiply
    276,200.24x = 381,112.38 × 155,318.15
  4. Step 4: Simplify right side
    276,200.24x = 59,193,670,756.48
  5. Step 5: Solve for x
    x = 59,193,670,756.48/276,200.24
  6. Step 6: Final answer
    x = 214,314.34

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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.