Home / 219,984.33-329,982.60-77,809.47

Finding the Fourth Proportional to 219,984.33, 329,982.60 and 77,809.47

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Solution

The fourth proportional to 219,984.33, 329,982.60 and 77,809.47 is: 116,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,984.33 : 329,982.60 = 77,809.47 : x
  2. Step 2: Convert to fraction form
    219,984.33/329,982.60 = 77,809.47/x
  3. Step 3: Cross multiply
    219,984.33x = 329,982.60 × 77,809.47
  4. Step 4: Simplify right side
    219,984.33x = 25,675,771,215.22
  5. Step 5: Solve for x
    x = 25,675,771,215.22/219,984.33
  6. Step 6: Final answer
    x = 116,716.36

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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.