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Finding the Fourth Proportional to 439,354.73, 658,795.01 and 199,337.63

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Solution

The fourth proportional to 439,354.73, 658,795.01 and 199,337.63 is: 298,898.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,354.73 : 658,795.01 = 199,337.63 : x
  2. Step 2: Convert to fraction form
    439,354.73/658,795.01 = 199,337.63/x
  3. Step 3: Cross multiply
    439,354.73x = 658,795.01 × 199,337.63
  4. Step 4: Simplify right side
    439,354.73x = 131,322,632,655.25
  5. Step 5: Solve for x
    x = 131,322,632,655.25/439,354.73
  6. Step 6: Final answer
    x = 298,898.87

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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.