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Finding the Fourth Proportional to 203,676.40, 305,514.60 and 192,012.40

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Solution

The fourth proportional to 203,676.40, 305,514.60 and 192,012.40 is: 288,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,676.40 : 305,514.60 = 192,012.40 : x
  2. Step 2: Convert to fraction form
    203,676.40/305,514.60 = 192,012.40/x
  3. Step 3: Cross multiply
    203,676.40x = 305,514.60 × 192,012.40
  4. Step 4: Simplify right side
    203,676.40x = 58,662,591,581.04
  5. Step 5: Solve for x
    x = 58,662,591,581.04/203,676.40
  6. Step 6: Final answer
    x = 288,018.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.