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Finding the Fourth Proportional to 219,894.22, 329,840.52 and 79,620.04

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Solution

The fourth proportional to 219,894.22, 329,840.52 and 79,620.04 is: 119,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,894.22 : 329,840.52 = 79,620.04 : x
  2. Step 2: Convert to fraction form
    219,894.22/329,840.52 = 79,620.04/x
  3. Step 3: Cross multiply
    219,894.22x = 329,840.52 × 79,620.04
  4. Step 4: Simplify right side
    219,894.22x = 26,261,915,396.02
  5. Step 5: Solve for x
    x = 26,261,915,396.02/219,894.22
  6. Step 6: Final answer
    x = 119,429.77

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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.