Home / 239,340.20-330,276-131,909.88

Finding the Fourth Proportional to 239,340.20, 330,276 and 131,909.88

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Solution

The fourth proportional to 239,340.20, 330,276 and 131,909.88 is: 182,028.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,340.20 : 330,276 = 131,909.88 : x
  2. Step 2: Convert to fraction form
    239,340.20/330,276 = 131,909.88/x
  3. Step 3: Cross multiply
    239,340.20x = 330,276 × 131,909.88
  4. Step 4: Simplify right side
    239,340.20x = 43,566,667,526.88
  5. Step 5: Solve for x
    x = 43,566,667,526.88/239,340.20
  6. Step 6: Final answer
    x = 182,028.21

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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.