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Finding the Fourth Proportional to 349,139.28, 481,826.12 and 198,250.32

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Solution

The fourth proportional to 349,139.28, 481,826.12 and 198,250.32 is: 273,593.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,139.28 : 481,826.12 = 198,250.32 : x
  2. Step 2: Convert to fraction form
    349,139.28/481,826.12 = 198,250.32/x
  3. Step 3: Cross multiply
    349,139.28x = 481,826.12 × 198,250.32
  4. Step 4: Simplify right side
    349,139.28x = 95,522,182,474.36
  5. Step 5: Solve for x
    x = 95,522,182,474.36/349,139.28
  6. Step 6: Final answer
    x = 273,593.34

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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.