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Finding the Fourth Proportional to 323,135.44, 445,912.50 and 185,215.48

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Solution

The fourth proportional to 323,135.44, 445,912.50 and 185,215.48 is: 255,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,135.44 : 445,912.50 = 185,215.48 : x
  2. Step 2: Convert to fraction form
    323,135.44/445,912.50 = 185,215.48/x
  3. Step 3: Cross multiply
    323,135.44x = 445,912.50 × 185,215.48
  4. Step 4: Simplify right side
    323,135.44x = 82,589,897,725.50
  5. Step 5: Solve for x
    x = 82,589,897,725.50/323,135.44
  6. Step 6: Final answer
    x = 255,589.10

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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.