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Finding the Fourth Proportional to 200,286.88, 276,393.36 and 120,798.88

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Solution

The fourth proportional to 200,286.88, 276,393.36 and 120,798.88 is: 166,700.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,286.88 : 276,393.36 = 120,798.88 : x
  2. Step 2: Convert to fraction form
    200,286.88/276,393.36 = 120,798.88/x
  3. Step 3: Cross multiply
    200,286.88x = 276,393.36 × 120,798.88
  4. Step 4: Simplify right side
    200,286.88x = 33,388,008,327.44
  5. Step 5: Solve for x
    x = 33,388,008,327.44/200,286.88
  6. Step 6: Final answer
    x = 166,700.93

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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.