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Finding the Fourth Proportional to 351,439.44, 485,021.16 and 200,559.12

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Solution

The fourth proportional to 351,439.44, 485,021.16 and 200,559.12 is: 276,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,439.44 : 485,021.16 = 200,559.12 : x
  2. Step 2: Convert to fraction form
    351,439.44/485,021.16 = 200,559.12/x
  3. Step 3: Cross multiply
    351,439.44x = 485,021.16 × 200,559.12
  4. Step 4: Simplify right side
    351,439.44x = 97,275,417,030.98
  5. Step 5: Solve for x
    x = 97,275,417,030.98/351,439.44
  6. Step 6: Final answer
    x = 276,791.41

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1.5x scale

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.