Home / 341,531.30-512,321.55-131,169.23

Finding the Fourth Proportional to 341,531.30, 512,321.55 and 131,169.23

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Solution

The fourth proportional to 341,531.30, 512,321.55 and 131,169.23 is: 196,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,531.30 : 512,321.55 = 131,169.23 : x
  2. Step 2: Convert to fraction form
    341,531.30/512,321.55 = 131,169.23/x
  3. Step 3: Cross multiply
    341,531.30x = 512,321.55 × 131,169.23
  4. Step 4: Simplify right side
    341,531.30x = 67,200,825,713.26
  5. Step 5: Solve for x
    x = 67,200,825,713.26/341,531.30
  6. Step 6: Final answer
    x = 196,763.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.