Home / 858,134.20-1,287,201.30-227,111.80

Finding the Fourth Proportional to 858,134.20, 1,287,201.30 and 227,111.80

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Solution

The fourth proportional to 858,134.20, 1,287,201.30 and 227,111.80 is: 340,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,134.20 : 1,287,201.30 = 227,111.80 : x
  2. Step 2: Convert to fraction form
    858,134.20/1,287,201.30 = 227,111.80/x
  3. Step 3: Cross multiply
    858,134.20x = 1,287,201.30 × 227,111.80
  4. Step 4: Simplify right side
    858,134.20x = 292,338,604,205.34
  5. Step 5: Solve for x
    x = 292,338,604,205.34/858,134.20
  6. Step 6: Final answer
    x = 340,667.70

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Double scale
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Similar ratio
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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.