Home / 227,147.20-340,462.40-138,204.64

Finding the Fourth Proportional to 227,147.20, 340,462.40 and 138,204.64

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Solution

The fourth proportional to 227,147.20, 340,462.40 and 138,204.64 is: 207,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,147.20 : 340,462.40 = 138,204.64 : x
  2. Step 2: Convert to fraction form
    227,147.20/340,462.40 = 138,204.64/x
  3. Step 3: Cross multiply
    227,147.20x = 340,462.40 × 138,204.64
  4. Step 4: Simplify right side
    227,147.20x = 47,053,483,425.54
  5. Step 5: Solve for x
    x = 47,053,483,425.54/227,147.20
  6. Step 6: Final answer
    x = 207,149.74

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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.