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Finding the Fourth Proportional to 276,805.00, 381,990.90 and 149,480.60

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Solution

The fourth proportional to 276,805.00, 381,990.90 and 149,480.60 is: 206,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,805.00 : 381,990.90 = 149,480.60 : x
  2. Step 2: Convert to fraction form
    276,805.00/381,990.90 = 149,480.60/x
  3. Step 3: Cross multiply
    276,805.00x = 381,990.90 × 149,480.60
  4. Step 4: Simplify right side
    276,805.00x = 57,100,227,688.07
  5. Step 5: Solve for x
    x = 57,100,227,688.07/276,805.00
  6. Step 6: Final answer
    x = 206,283.22

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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.