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Finding the Fourth Proportional to 321,670.37, 481,742.84 and 254,895.79

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Solution

The fourth proportional to 321,670.37, 481,742.84 and 254,895.79 is: 381,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,670.37 : 481,742.84 = 254,895.79 : x
  2. Step 2: Convert to fraction form
    321,670.37/481,742.84 = 254,895.79/x
  3. Step 3: Cross multiply
    321,670.37x = 481,742.84 × 254,895.79
  4. Step 4: Simplify right side
    321,670.37x = 122,794,221,778.64
  5. Step 5: Solve for x
    x = 122,794,221,778.64/321,670.37
  6. Step 6: Final answer
    x = 381,739.30

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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.