Home / 543,917.70-815,753.57-206,838.23

Finding the Fourth Proportional to 543,917.70, 815,753.57 and 206,838.23

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Solution

The fourth proportional to 543,917.70, 815,753.57 and 206,838.23 is: 310,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,917.70 : 815,753.57 = 206,838.23 : x
  2. Step 2: Convert to fraction form
    543,917.70/815,753.57 = 206,838.23/x
  3. Step 3: Cross multiply
    543,917.70x = 815,753.57 × 206,838.23
  4. Step 4: Simplify right side
    543,917.70x = 168,729,019,422.02
  5. Step 5: Solve for x
    x = 168,729,019,422.02/543,917.70
  6. Step 6: Final answer
    x = 310,210.57

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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.