Home / 208,814.28-313,221.78-51,042.84

Finding the Fourth Proportional to 208,814.28, 313,221.78 and 51,042.84

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Solution

The fourth proportional to 208,814.28, 313,221.78 and 51,042.84 is: 76,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,814.28 : 313,221.78 = 51,042.84 : x
  2. Step 2: Convert to fraction form
    208,814.28/313,221.78 = 51,042.84/x
  3. Step 3: Cross multiply
    208,814.28x = 313,221.78 × 51,042.84
  4. Step 4: Simplify right side
    208,814.28x = 15,987,729,201.06
  5. Step 5: Solve for x
    x = 15,987,729,201.06/208,814.28
  6. Step 6: Final answer
    x = 76,564.35

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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.