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Finding the Fourth Proportional to 351,144.28, 484,575.54 and 189,995.80

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Solution

The fourth proportional to 351,144.28, 484,575.54 and 189,995.80 is: 262,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,144.28 : 484,575.54 = 189,995.80 : x
  2. Step 2: Convert to fraction form
    351,144.28/484,575.54 = 189,995.80/x
  3. Step 3: Cross multiply
    351,144.28x = 484,575.54 × 189,995.80
  4. Step 4: Simplify right side
    351,144.28x = 92,067,317,382.73
  5. Step 5: Solve for x
    x = 92,067,317,382.73/351,144.28
  6. Step 6: Final answer
    x = 262,192.27

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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.