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Finding the Fourth Proportional to 321,677.73, 443,968.43 and 178,483.91

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Solution

The fourth proportional to 321,677.73, 443,968.43 and 178,483.91 is: 246,337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,677.73 : 443,968.43 = 178,483.91 : x
  2. Step 2: Convert to fraction form
    321,677.73/443,968.43 = 178,483.91/x
  3. Step 3: Cross multiply
    321,677.73x = 443,968.43 × 178,483.91
  4. Step 4: Simplify right side
    321,677.73x = 79,241,218,190.70
  5. Step 5: Solve for x
    x = 79,241,218,190.70/321,677.73
  6. Step 6: Final answer
    x = 246,337.28

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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.