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Finding the Fourth Proportional to 321,753.90, 444,020.44 and 178,513.60

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Solution

The fourth proportional to 321,753.90, 444,020.44 and 178,513.60 is: 246,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,753.90 : 444,020.44 = 178,513.60 : x
  2. Step 2: Convert to fraction form
    321,753.90/444,020.44 = 178,513.60/x
  3. Step 3: Cross multiply
    321,753.90x = 444,020.44 × 178,513.60
  4. Step 4: Simplify right side
    321,753.90x = 79,263,687,326.73
  5. Step 5: Solve for x
    x = 79,263,687,326.73/321,753.90
  6. Step 6: Final answer
    x = 246,348.80

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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.