Home / 227,143.16-340,456.44-138,200.68

Finding the Fourth Proportional to 227,143.16, 340,456.44 and 138,200.68

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Solution

The fourth proportional to 227,143.16, 340,456.44 and 138,200.68 is: 207,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,143.16 : 340,456.44 = 138,200.68 : x
  2. Step 2: Convert to fraction form
    227,143.16/340,456.44 = 138,200.68/x
  3. Step 3: Cross multiply
    227,143.16x = 340,456.44 × 138,200.68
  4. Step 4: Simplify right side
    227,143.16x = 47,051,311,518.38
  5. Step 5: Solve for x
    x = 47,051,311,518.38/227,143.16
  6. Step 6: Final answer
    x = 207,143.86

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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.