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Finding the Fourth Proportional to 239,249.34, 330,171.57 and 137,293.50

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Solution

The fourth proportional to 239,249.34, 330,171.57 and 137,293.50 is: 189,469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,249.34 : 330,171.57 = 137,293.50 : x
  2. Step 2: Convert to fraction form
    239,249.34/330,171.57 = 137,293.50/x
  3. Step 3: Cross multiply
    239,249.34x = 330,171.57 × 137,293.50
  4. Step 4: Simplify right side
    239,249.34x = 45,330,410,445.80
  5. Step 5: Solve for x
    x = 45,330,410,445.80/239,249.34
  6. Step 6: Final answer
    x = 189,469.32

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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.