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Finding the Fourth Proportional to 200,808.97, 300,803.38 and 112,109.72

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Solution

The fourth proportional to 200,808.97, 300,803.38 and 112,109.72 is: 167,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,808.97 : 300,803.38 = 112,109.72 : x
  2. Step 2: Convert to fraction form
    200,808.97/300,803.38 = 112,109.72/x
  3. Step 3: Cross multiply
    200,808.97x = 300,803.38 × 112,109.72
  4. Step 4: Simplify right side
    200,808.97x = 33,722,980,922.56
  5. Step 5: Solve for x
    x = 33,722,980,922.56/200,808.97
  6. Step 6: Final answer
    x = 167,935.63

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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.