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Finding the Fourth Proportional to 323,791.50, 446,832.28 and 189,655.50

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Solution

The fourth proportional to 323,791.50, 446,832.28 and 189,655.50 is: 261,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,791.50 : 446,832.28 = 189,655.50 : x
  2. Step 2: Convert to fraction form
    323,791.50/446,832.28 = 189,655.50/x
  3. Step 3: Cross multiply
    323,791.50x = 446,832.28 × 189,655.50
  4. Step 4: Simplify right side
    323,791.50x = 84,744,199,479.54
  5. Step 5: Solve for x
    x = 84,744,199,479.54/323,791.50
  6. Step 6: Final answer
    x = 261,724.60

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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.