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Finding the Fourth Proportional to 227,301.40, 340,952.10 and 138,727.90

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Solution

The fourth proportional to 227,301.40, 340,952.10 and 138,727.90 is: 208,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,301.40 : 340,952.10 = 138,727.90 : x
  2. Step 2: Convert to fraction form
    227,301.40/340,952.10 = 138,727.90/x
  3. Step 3: Cross multiply
    227,301.40x = 340,952.10 × 138,727.90
  4. Step 4: Simplify right side
    227,301.40x = 47,299,568,833.59
  5. Step 5: Solve for x
    x = 47,299,568,833.59/227,301.40
  6. Step 6: Final answer
    x = 208,091.85

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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.