Home / 356,315.90-491,716.14-195,173.64

Finding the Fourth Proportional to 356,315.90, 491,716.14 and 195,173.64

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Solution

The fourth proportional to 356,315.90, 491,716.14 and 195,173.64 is: 269,339.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,315.90 : 491,716.14 = 195,173.64 : x
  2. Step 2: Convert to fraction form
    356,315.90/491,716.14 = 195,173.64/x
  3. Step 3: Cross multiply
    356,315.90x = 491,716.14 × 195,173.64
  4. Step 4: Simplify right side
    356,315.90x = 95,970,028,890.55
  5. Step 5: Solve for x
    x = 95,970,028,890.55/356,315.90
  6. Step 6: Final answer
    x = 269,339.73

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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.