Home / 219,338.31-328,940.49-92,976.19

Finding the Fourth Proportional to 219,338.31, 328,940.49 and 92,976.19

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Solution

The fourth proportional to 219,338.31, 328,940.49 and 92,976.19 is: 139,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,338.31 : 328,940.49 = 92,976.19 : x
  2. Step 2: Convert to fraction form
    219,338.31/328,940.49 = 92,976.19/x
  3. Step 3: Cross multiply
    219,338.31x = 328,940.49 × 92,976.19
  4. Step 4: Simplify right side
    219,338.31x = 30,583,633,023.24
  5. Step 5: Solve for x
    x = 30,583,633,023.24/219,338.31
  6. Step 6: Final answer
    x = 139,435.89

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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.