Home / 200,278.48-300,309.96-80,275.20

Finding the Fourth Proportional to 200,278.48, 300,309.96 and 80,275.20

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Solution

The fourth proportional to 200,278.48, 300,309.96 and 80,275.20 is: 120,369.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,278.48 : 300,309.96 = 80,275.20 : x
  2. Step 2: Convert to fraction form
    200,278.48/300,309.96 = 80,275.20/x
  3. Step 3: Cross multiply
    200,278.48x = 300,309.96 × 80,275.20
  4. Step 4: Simplify right side
    200,278.48x = 24,107,442,100.99
  5. Step 5: Solve for x
    x = 24,107,442,100.99/200,278.48
  6. Step 6: Final answer
    x = 120,369.61

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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.