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Finding the Fourth Proportional to 321,244.89, 481,773.62 and 107,988.69

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Solution

The fourth proportional to 321,244.89, 481,773.62 and 107,988.69 is: 161,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,244.89 : 481,773.62 = 107,988.69 : x
  2. Step 2: Convert to fraction form
    321,244.89/481,773.62 = 107,988.69/x
  3. Step 3: Cross multiply
    321,244.89x = 481,773.62 × 107,988.69
  4. Step 4: Simplify right side
    321,244.89x = 52,026,104,176.98
  5. Step 5: Solve for x
    x = 52,026,104,176.98/321,244.89
  6. Step 6: Final answer
    x = 161,951.54

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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.