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Finding the Fourth Proportional to 276,628.60, 414,845.70 and 126,940.60

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Solution

The fourth proportional to 276,628.60, 414,845.70 and 126,940.60 is: 190,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,628.60 : 414,845.70 = 126,940.60 : x
  2. Step 2: Convert to fraction form
    276,628.60/414,845.70 = 126,940.60/x
  3. Step 3: Cross multiply
    276,628.60x = 414,845.70 × 126,940.60
  4. Step 4: Simplify right side
    276,628.60x = 52,660,762,065.42
  5. Step 5: Solve for x
    x = 52,660,762,065.42/276,628.60
  6. Step 6: Final answer
    x = 190,366.30

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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.