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Finding the Fourth Proportional to 263,278.80, 395,047.80 and 200,077.20

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Solution

The fourth proportional to 263,278.80, 395,047.80 and 200,077.20 is: 300,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,278.80 : 395,047.80 = 200,077.20 : x
  2. Step 2: Convert to fraction form
    263,278.80/395,047.80 = 200,077.20/x
  3. Step 3: Cross multiply
    263,278.80x = 395,047.80 × 200,077.20
  4. Step 4: Simplify right side
    263,278.80x = 79,040,057,690.16
  5. Step 5: Solve for x
    x = 79,040,057,690.16/263,278.80
  6. Step 6: Final answer
    x = 300,214.29

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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.