Home / 680,143.12-1,019,863.08-200,308.48

Finding the Fourth Proportional to 680,143.12, 1,019,863.08 and 200,308.48

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Solution

The fourth proportional to 680,143.12, 1,019,863.08 and 200,308.48 is: 300,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,143.12 : 1,019,863.08 = 200,308.48 : x
  2. Step 2: Convert to fraction form
    680,143.12/1,019,863.08 = 200,308.48/x
  3. Step 3: Cross multiply
    680,143.12x = 1,019,863.08 × 200,308.48
  4. Step 4: Simplify right side
    680,143.12x = 204,287,223,362.92
  5. Step 5: Solve for x
    x = 204,287,223,362.92/680,143.12
  6. Step 6: Final answer
    x = 300,359.17

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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.