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Finding the Fourth Proportional to 219,249.12, 328,836.62 and 61,441.28

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Solution

The fourth proportional to 219,249.12, 328,836.62 and 61,441.28 is: 92,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,249.12 : 328,836.62 = 61,441.28 : x
  2. Step 2: Convert to fraction form
    219,249.12/328,836.62 = 61,441.28/x
  3. Step 3: Cross multiply
    219,249.12x = 328,836.62 × 61,441.28
  4. Step 4: Simplify right side
    219,249.12x = 20,204,142,843.67
  5. Step 5: Solve for x
    x = 20,204,142,843.67/219,249.12
  6. Step 6: Final answer
    x = 92,151.53

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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.