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Finding the Fourth Proportional to 439,849.77, 659,829 and 155,481.69

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Solution

The fourth proportional to 439,849.77, 659,829 and 155,481.69 is: 233,241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,849.77 : 659,829 = 155,481.69 : x
  2. Step 2: Convert to fraction form
    439,849.77/659,829 = 155,481.69/x
  3. Step 3: Cross multiply
    439,849.77x = 659,829 × 155,481.69
  4. Step 4: Simplify right side
    439,849.77x = 102,591,328,031.01
  5. Step 5: Solve for x
    x = 102,591,328,031.01/439,849.77
  6. Step 6: Final answer
    x = 233,241.75

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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.