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Finding the Fourth Proportional to 219,314.58, 328,922.65 and 100,872.12

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Solution

The fourth proportional to 219,314.58, 328,922.65 and 100,872.12 is: 151,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,314.58 : 328,922.65 = 100,872.12 : x
  2. Step 2: Convert to fraction form
    219,314.58/328,922.65 = 100,872.12/x
  3. Step 3: Cross multiply
    219,314.58x = 328,922.65 × 100,872.12
  4. Step 4: Simplify right side
    219,314.58x = 33,179,125,021.52
  5. Step 5: Solve for x
    x = 33,179,125,021.52/219,314.58
  6. Step 6: Final answer
    x = 151,285.54

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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.