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Finding the Fourth Proportional to 276,808, 381,995.05 and 149,483.60

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Solution

The fourth proportional to 276,808, 381,995.05 and 149,483.60 is: 206,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,808 : 381,995.05 = 149,483.60 : x
  2. Step 2: Convert to fraction form
    276,808/381,995.05 = 149,483.60/x
  3. Step 3: Cross multiply
    276,808x = 381,995.05 × 149,483.60
  4. Step 4: Simplify right side
    276,808x = 57,101,995,256.18
  5. Step 5: Solve for x
    x = 57,101,995,256.18/276,808
  6. Step 6: Final answer
    x = 206,287.37

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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.