Home / 215,760.20-323,640.30-141,110.60

Finding the Fourth Proportional to 215,760.20, 323,640.30 and 141,110.60

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Solution

The fourth proportional to 215,760.20, 323,640.30 and 141,110.60 is: 211,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,760.20 : 323,640.30 = 141,110.60 : x
  2. Step 2: Convert to fraction form
    215,760.20/323,640.30 = 141,110.60/x
  3. Step 3: Cross multiply
    215,760.20x = 323,640.30 × 141,110.60
  4. Step 4: Simplify right side
    215,760.20x = 45,669,076,917.18
  5. Step 5: Solve for x
    x = 45,669,076,917.18/215,760.20
  6. Step 6: Final answer
    x = 211,665.90

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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.