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Finding the Fourth Proportional to 223,449.37, 308,358.84 and 126,671.49

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Solution

The fourth proportional to 223,449.37, 308,358.84 and 126,671.49 is: 174,805.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,449.37 : 308,358.84 = 126,671.49 : x
  2. Step 2: Convert to fraction form
    223,449.37/308,358.84 = 126,671.49/x
  3. Step 3: Cross multiply
    223,449.37x = 308,358.84 × 126,671.49
  4. Step 4: Simplify right side
    223,449.37x = 39,060,273,717.47
  5. Step 5: Solve for x
    x = 39,060,273,717.47/223,449.37
  6. Step 6: Final answer
    x = 174,805.92

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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.