Home / 213,278.66-320,114.79-108,171.44

Finding the Fourth Proportional to 213,278.66, 320,114.79 and 108,171.44

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Solution

The fourth proportional to 213,278.66, 320,114.79 and 108,171.44 is: 162,356.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,278.66 : 320,114.79 = 108,171.44 : x
  2. Step 2: Convert to fraction form
    213,278.66/320,114.79 = 108,171.44/x
  3. Step 3: Cross multiply
    213,278.66x = 320,114.79 × 108,171.44
  4. Step 4: Simplify right side
    213,278.66x = 34,627,277,799.60
  5. Step 5: Solve for x
    x = 34,627,277,799.60/213,278.66
  6. Step 6: Final answer
    x = 162,356.97

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1.5x scale

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.