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Finding the Fourth Proportional to 219,764.80, 329,671.27 and 69,969.88

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Solution

The fourth proportional to 219,764.80, 329,671.27 and 69,969.88 is: 104,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,764.80 : 329,671.27 = 69,969.88 : x
  2. Step 2: Convert to fraction form
    219,764.80/329,671.27 = 69,969.88/x
  3. Step 3: Cross multiply
    219,764.80x = 329,671.27 × 69,969.88
  4. Step 4: Simplify right side
    219,764.80x = 23,067,057,452.92
  5. Step 5: Solve for x
    x = 23,067,057,452.92/219,764.80
  6. Step 6: Final answer
    x = 104,962.48

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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.