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Finding the Fourth Proportional to 493,480.80, 740,221.20 and 227,760.30

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Solution

The fourth proportional to 493,480.80, 740,221.20 and 227,760.30 is: 341,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,480.80 : 740,221.20 = 227,760.30 : x
  2. Step 2: Convert to fraction form
    493,480.80/740,221.20 = 227,760.30/x
  3. Step 3: Cross multiply
    493,480.80x = 740,221.20 × 227,760.30
  4. Step 4: Simplify right side
    493,480.80x = 168,593,002,578.36
  5. Step 5: Solve for x
    x = 168,593,002,578.36/493,480.80
  6. Step 6: Final answer
    x = 341,640.45

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Double scale
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Similar ratio
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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.