Home / 215,975.20-323,962.64-115,997.76

Finding the Fourth Proportional to 215,975.20, 323,962.64 and 115,997.76

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Solution

The fourth proportional to 215,975.20, 323,962.64 and 115,997.76 is: 173,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,975.20 : 323,962.64 = 115,997.76 : x
  2. Step 2: Convert to fraction form
    215,975.20/323,962.64 = 115,997.76/x
  3. Step 3: Cross multiply
    215,975.20x = 323,962.64 × 115,997.76
  4. Step 4: Simplify right side
    215,975.20x = 37,578,940,563.69
  5. Step 5: Solve for x
    x = 37,578,940,563.69/215,975.20
  6. Step 6: Final answer
    x = 173,996.55

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1.5x scale

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.