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Finding the Fourth Proportional to 276,144.71, 414,222.21 and 86,600.88

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Solution

The fourth proportional to 276,144.71, 414,222.21 and 86,600.88 is: 129,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,144.71 : 414,222.21 = 86,600.88 : x
  2. Step 2: Convert to fraction form
    276,144.71/414,222.21 = 86,600.88/x
  3. Step 3: Cross multiply
    276,144.71x = 414,222.21 × 86,600.88
  4. Step 4: Simplify right side
    276,144.71x = 35,872,007,901.54
  5. Step 5: Solve for x
    x = 35,872,007,901.54/276,144.71
  6. Step 6: Final answer
    x = 129,902.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.