Home / 214,921.88-320,805.36-199,088

Finding the Fourth Proportional to 214,921.88, 320,805.36 and 199,088

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Solution

The fourth proportional to 214,921.88, 320,805.36 and 199,088 is: 297,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,921.88 : 320,805.36 = 199,088 : x
  2. Step 2: Convert to fraction form
    214,921.88/320,805.36 = 199,088/x
  3. Step 3: Cross multiply
    214,921.88x = 320,805.36 × 199,088
  4. Step 4: Simplify right side
    214,921.88x = 63,868,497,511.68
  5. Step 5: Solve for x
    x = 63,868,497,511.68/214,921.88
  6. Step 6: Final answer
    x = 297,170.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.