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Finding the Fourth Proportional to 655,108.56, 982,674.96 and 205,821

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Solution

The fourth proportional to 655,108.56, 982,674.96 and 205,821 is: 308,735.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,108.56 : 982,674.96 = 205,821 : x
  2. Step 2: Convert to fraction form
    655,108.56/982,674.96 = 205,821/x
  3. Step 3: Cross multiply
    655,108.56x = 982,674.96 × 205,821
  4. Step 4: Simplify right side
    655,108.56x = 202,255,142,942.16
  5. Step 5: Solve for x
    x = 202,255,142,942.16/655,108.56
  6. Step 6: Final answer
    x = 308,735.31

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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.