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Finding the Fourth Proportional to 276,685.88, 381,675.66 and 240,812.60

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Solution

The fourth proportional to 276,685.88, 381,675.66 and 240,812.60 is: 332,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,685.88 : 381,675.66 = 240,812.60 : x
  2. Step 2: Convert to fraction form
    276,685.88/381,675.66 = 240,812.60/x
  3. Step 3: Cross multiply
    276,685.88x = 381,675.66 × 240,812.60
  4. Step 4: Simplify right side
    276,685.88x = 91,912,308,041.32
  5. Step 5: Solve for x
    x = 91,912,308,041.32/276,685.88
  6. Step 6: Final answer
    x = 332,190.09

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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.