Home / 207,918.45-311,877.68-199,061.10

Finding the Fourth Proportional to 207,918.45, 311,877.68 and 199,061.10

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Solution

The fourth proportional to 207,918.45, 311,877.68 and 199,061.10 is: 298,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,918.45 : 311,877.68 = 199,061.10 : x
  2. Step 2: Convert to fraction form
    207,918.45/311,877.68 = 199,061.10/x
  3. Step 3: Cross multiply
    207,918.45x = 311,877.68 × 199,061.10
  4. Step 4: Simplify right side
    207,918.45x = 62,082,713,050.94
  5. Step 5: Solve for x
    x = 62,082,713,050.94/207,918.45
  6. Step 6: Final answer
    x = 298,591.65

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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.