Home / 219,860.94-303,364.97-138,141.86

Finding the Fourth Proportional to 219,860.94, 303,364.97 and 138,141.86

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Solution

The fourth proportional to 219,860.94, 303,364.97 and 138,141.86 is: 190,608.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,860.94 : 303,364.97 = 138,141.86 : x
  2. Step 2: Convert to fraction form
    219,860.94/303,364.97 = 138,141.86/x
  3. Step 3: Cross multiply
    219,860.94x = 303,364.97 × 138,141.86
  4. Step 4: Simplify right side
    219,860.94x = 41,907,399,007.11
  5. Step 5: Solve for x
    x = 41,907,399,007.11/219,860.94
  6. Step 6: Final answer
    x = 190,608.66

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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.