Home / 219,363.24-302,704.38-123,878.28

Finding the Fourth Proportional to 219,363.24, 302,704.38 and 123,878.28

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Solution

The fourth proportional to 219,363.24, 302,704.38 and 123,878.28 is: 170,942.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,363.24 : 302,704.38 = 123,878.28 : x
  2. Step 2: Convert to fraction form
    219,363.24/302,704.38 = 123,878.28/x
  3. Step 3: Cross multiply
    219,363.24x = 302,704.38 × 123,878.28
  4. Step 4: Simplify right side
    219,363.24x = 37,498,497,942.87
  5. Step 5: Solve for x
    x = 37,498,497,942.87/219,363.24
  6. Step 6: Final answer
    x = 170,942.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.