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Finding the Fourth Proportional to 227,383.40, 313,791.12 and 125,412.80

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Solution

The fourth proportional to 227,383.40, 313,791.12 and 125,412.80 is: 173,070.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,383.40 : 313,791.12 = 125,412.80 : x
  2. Step 2: Convert to fraction form
    227,383.40/313,791.12 = 125,412.80/x
  3. Step 3: Cross multiply
    227,383.40x = 313,791.12 × 125,412.80
  4. Step 4: Simplify right side
    227,383.40x = 39,353,422,974.34
  5. Step 5: Solve for x
    x = 39,353,422,974.34/227,383.40
  6. Step 6: Final answer
    x = 173,070.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.