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Finding the Fourth Proportional to 200,326.03, 300,488.13 and 81,997.39

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Solution

The fourth proportional to 200,326.03, 300,488.13 and 81,997.39 is: 122,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,326.03 : 300,488.13 = 81,997.39 : x
  2. Step 2: Convert to fraction form
    200,326.03/300,488.13 = 81,997.39/x
  3. Step 3: Cross multiply
    200,326.03x = 300,488.13 × 81,997.39
  4. Step 4: Simplify right side
    200,326.03x = 24,639,242,385.98
  5. Step 5: Solve for x
    x = 24,639,242,385.98/200,326.03
  6. Step 6: Final answer
    x = 122,995.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.