Home / 198,891.36-274,571.64-153,467.28

Finding the Fourth Proportional to 198,891.36, 274,571.64 and 153,467.28

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Solution

The fourth proportional to 198,891.36, 274,571.64 and 153,467.28 is: 211,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,891.36 : 274,571.64 = 153,467.28 : x
  2. Step 2: Convert to fraction form
    198,891.36/274,571.64 = 153,467.28/x
  3. Step 3: Cross multiply
    198,891.36x = 274,571.64 × 153,467.28
  4. Step 4: Simplify right side
    198,891.36x = 42,137,762,755.94
  5. Step 5: Solve for x
    x = 42,137,762,755.94/198,891.36
  6. Step 6: Final answer
    x = 211,863.21

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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.