Home / 280,423.88-419,965.24-161,735.39

Finding the Fourth Proportional to 280,423.88, 419,965.24 and 161,735.39

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Solution

The fourth proportional to 280,423.88, 419,965.24 and 161,735.39 is: 242,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,423.88 : 419,965.24 = 161,735.39 : x
  2. Step 2: Convert to fraction form
    280,423.88/419,965.24 = 161,735.39/x
  3. Step 3: Cross multiply
    280,423.88x = 419,965.24 × 161,735.39
  4. Step 4: Simplify right side
    280,423.88x = 67,923,241,877.84
  5. Step 5: Solve for x
    x = 67,923,241,877.84/280,423.88
  6. Step 6: Final answer
    x = 242,216.33

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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.