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Finding the Fourth Proportional to 239,396.56, 330,363.12 and 131,976.58

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Solution

The fourth proportional to 239,396.56, 330,363.12 and 131,976.58 is: 182,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,396.56 : 330,363.12 = 131,976.58 : x
  2. Step 2: Convert to fraction form
    239,396.56/330,363.12 = 131,976.58/x
  3. Step 3: Cross multiply
    239,396.56x = 330,363.12 × 131,976.58
  4. Step 4: Simplify right side
    239,396.56x = 43,600,194,735.73
  5. Step 5: Solve for x
    x = 43,600,194,735.73/239,396.56
  6. Step 6: Final answer
    x = 182,125.40

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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.