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Finding the Fourth Proportional to 203,392.64, 280,668.48 and 113,951.36

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Solution

The fourth proportional to 203,392.64, 280,668.48 and 113,951.36 is: 157,245.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,392.64 : 280,668.48 = 113,951.36 : x
  2. Step 2: Convert to fraction form
    203,392.64/280,668.48 = 113,951.36/x
  3. Step 3: Cross multiply
    203,392.64x = 280,668.48 × 113,951.36
  4. Step 4: Simplify right side
    203,392.64x = 31,982,555,005.13
  5. Step 5: Solve for x
    x = 31,982,555,005.13/203,392.64
  6. Step 6: Final answer
    x = 157,245.39

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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.