Home / 351,868.20-485,643.12-200,965.20

Finding the Fourth Proportional to 351,868.20, 485,643.12 and 200,965.20

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Solution

The fourth proportional to 351,868.20, 485,643.12 and 200,965.20 is: 277,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,868.20 : 485,643.12 = 200,965.20 : x
  2. Step 2: Convert to fraction form
    351,868.20/485,643.12 = 200,965.20/x
  3. Step 3: Cross multiply
    351,868.20x = 485,643.12 × 200,965.20
  4. Step 4: Simplify right side
    351,868.20x = 97,597,366,739.42
  5. Step 5: Solve for x
    x = 97,597,366,739.42/351,868.20
  6. Step 6: Final answer
    x = 277,369.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.