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Finding the Fourth Proportional to 204,987.60, 307,481.40 and 125,845.20

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Solution

The fourth proportional to 204,987.60, 307,481.40 and 125,845.20 is: 188,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,987.60 : 307,481.40 = 125,845.20 : x
  2. Step 2: Convert to fraction form
    204,987.60/307,481.40 = 125,845.20/x
  3. Step 3: Cross multiply
    204,987.60x = 307,481.40 × 125,845.20
  4. Step 4: Simplify right side
    204,987.60x = 38,695,058,279.28
  5. Step 5: Solve for x
    x = 38,695,058,279.28/204,987.60
  6. Step 6: Final answer
    x = 188,767.80

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1.5x scale

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.