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Finding the Fourth Proportional to 199,768.42, 299,673.69 and 66,602.26

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Solution

The fourth proportional to 199,768.42, 299,673.69 and 66,602.26 is: 99,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,768.42 : 299,673.69 = 66,602.26 : x
  2. Step 2: Convert to fraction form
    199,768.42/299,673.69 = 66,602.26/x
  3. Step 3: Cross multiply
    199,768.42x = 299,673.69 × 66,602.26
  4. Step 4: Simplify right side
    199,768.42x = 19,958,945,016.54
  5. Step 5: Solve for x
    x = 19,958,945,016.54/199,768.42
  6. Step 6: Final answer
    x = 99,910.41

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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.