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Finding the Fourth Proportional to 276,679.94, 381,014.33 and 240,364.80

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Solution

The fourth proportional to 276,679.94, 381,014.33 and 240,364.80 is: 331,004.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,679.94 : 381,014.33 = 240,364.80 : x
  2. Step 2: Convert to fraction form
    276,679.94/381,014.33 = 240,364.80/x
  3. Step 3: Cross multiply
    276,679.94x = 381,014.33 × 240,364.80
  4. Step 4: Simplify right side
    276,679.94x = 91,582,433,227.58
  5. Step 5: Solve for x
    x = 91,582,433,227.58/276,679.94
  6. Step 6: Final answer
    x = 331,004.96

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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.