Home / 239,378.20-330,337.80-131,958.22

Finding the Fourth Proportional to 239,378.20, 330,337.80 and 131,958.22

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Solution

The fourth proportional to 239,378.20, 330,337.80 and 131,958.22 is: 182,100.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,378.20 : 330,337.80 = 131,958.22 : x
  2. Step 2: Convert to fraction form
    239,378.20/330,337.80 = 131,958.22/x
  3. Step 3: Cross multiply
    239,378.20x = 330,337.80 × 131,958.22
  4. Step 4: Simplify right side
    239,378.20x = 43,590,788,086.72
  5. Step 5: Solve for x
    x = 43,590,788,086.72/239,378.20
  6. Step 6: Final answer
    x = 182,100.07

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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.