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Finding the Fourth Proportional to 219,969.09, 329,978.25 and 62,209.89

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Solution

The fourth proportional to 219,969.09, 329,978.25 and 62,209.89 is: 93,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,969.09 : 329,978.25 = 62,209.89 : x
  2. Step 2: Convert to fraction form
    219,969.09/329,978.25 = 62,209.89/x
  3. Step 3: Cross multiply
    219,969.09x = 329,978.25 × 62,209.89
  4. Step 4: Simplify right side
    219,969.09x = 20,527,910,634.89
  5. Step 5: Solve for x
    x = 20,527,910,634.89/219,969.09
  6. Step 6: Final answer
    x = 93,321.80

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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.