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Finding the Fourth Proportional to 276,038.08, 381,222.97 and 245,947.90

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Solution

The fourth proportional to 276,038.08, 381,222.97 and 245,947.90 is: 339,666.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,038.08 : 381,222.97 = 245,947.90 : x
  2. Step 2: Convert to fraction form
    276,038.08/381,222.97 = 245,947.90/x
  3. Step 3: Cross multiply
    276,038.08x = 381,222.97 × 245,947.90
  4. Step 4: Simplify right side
    276,038.08x = 93,760,986,997.15
  5. Step 5: Solve for x
    x = 93,760,986,997.15/276,038.08
  6. Step 6: Final answer
    x = 339,666.86

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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.