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Finding the Fourth Proportional to 219,740, 329,414.52 and 79,467.44

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Solution

The fourth proportional to 219,740, 329,414.52 and 79,467.44 is: 119,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,740 : 329,414.52 = 79,467.44 : x
  2. Step 2: Convert to fraction form
    219,740/329,414.52 = 79,467.44/x
  3. Step 3: Cross multiply
    219,740x = 329,414.52 × 79,467.44
  4. Step 4: Simplify right side
    219,740x = 26,177,728,603.23
  5. Step 5: Solve for x
    x = 26,177,728,603.23/219,740
  6. Step 6: Final answer
    x = 119,130.47

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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.