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Finding the Fourth Proportional to 219,893.22, 329,839.02 and 79,619.04

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Solution

The fourth proportional to 219,893.22, 329,839.02 and 79,619.04 is: 119,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,893.22 : 329,839.02 = 79,619.04 : x
  2. Step 2: Convert to fraction form
    219,893.22/329,839.02 = 79,619.04/x
  3. Step 3: Cross multiply
    219,893.22x = 329,839.02 × 79,619.04
  4. Step 4: Simplify right side
    219,893.22x = 26,261,466,126.94
  5. Step 5: Solve for x
    x = 26,261,466,126.94/219,893.22
  6. Step 6: Final answer
    x = 119,428.27

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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.