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Finding the Fourth Proportional to 200,288.88, 276,396.12 and 120,800.88

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Solution

The fourth proportional to 200,288.88, 276,396.12 and 120,800.88 is: 166,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,288.88 : 276,396.12 = 120,800.88 : x
  2. Step 2: Convert to fraction form
    200,288.88/276,396.12 = 120,800.88/x
  3. Step 3: Cross multiply
    200,288.88x = 276,396.12 × 120,800.88
  4. Step 4: Simplify right side
    200,288.88x = 33,388,894,524.59
  5. Step 5: Solve for x
    x = 33,388,894,524.59/200,288.88
  6. Step 6: Final answer
    x = 166,703.69

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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.