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Finding the Fourth Proportional to 239,396.54, 330,363.14 and 131,976.56

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Solution

The fourth proportional to 239,396.54, 330,363.14 and 131,976.56 is: 182,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,396.54 : 330,363.14 = 131,976.56 : x
  2. Step 2: Convert to fraction form
    239,396.54/330,363.14 = 131,976.56/x
  3. Step 3: Cross multiply
    239,396.54x = 330,363.14 × 131,976.56
  4. Step 4: Simplify right side
    239,396.54x = 43,600,190,768.00
  5. Step 5: Solve for x
    x = 43,600,190,768.00/239,396.54
  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.