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Finding the Fourth Proportional to 198,719.33, 298,036.67 and 65,568.29

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Solution

The fourth proportional to 198,719.33, 298,036.67 and 65,568.29 is: 98,338.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,719.33 : 298,036.67 = 65,568.29 : x
  2. Step 2: Convert to fraction form
    198,719.33/298,036.67 = 65,568.29/x
  3. Step 3: Cross multiply
    198,719.33x = 298,036.67 × 65,568.29
  4. Step 4: Simplify right side
    198,719.33x = 19,541,752,991.17
  5. Step 5: Solve for x
    x = 19,541,752,991.17/198,719.33
  6. Step 6: Final answer
    x = 98,338.46

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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.