Home / 239,416.38-330,396.84-131,990.22

Finding the Fourth Proportional to 239,416.38, 330,396.84 and 131,990.22

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Solution

The fourth proportional to 239,416.38, 330,396.84 and 131,990.22 is: 182,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,416.38 : 330,396.84 = 131,990.22 : x
  2. Step 2: Convert to fraction form
    239,416.38/330,396.84 = 131,990.22/x
  3. Step 3: Cross multiply
    239,416.38x = 330,396.84 × 131,990.22
  4. Step 4: Simplify right side
    239,416.38x = 43,609,151,598.90
  5. Step 5: Solve for x
    x = 43,609,151,598.90/239,416.38
  6. Step 6: Final answer
    x = 182,147.74

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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.