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Finding the Fourth Proportional to 223,679.98, 308,672.22 and 126,901.54

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Solution

The fourth proportional to 223,679.98, 308,672.22 and 126,901.54 is: 175,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,679.98 : 308,672.22 = 126,901.54 : x
  2. Step 2: Convert to fraction form
    223,679.98/308,672.22 = 126,901.54/x
  3. Step 3: Cross multiply
    223,679.98x = 308,672.22 × 126,901.54
  4. Step 4: Simplify right side
    223,679.98x = 39,170,980,073.22
  5. Step 5: Solve for x
    x = 39,170,980,073.22/223,679.98
  6. Step 6: Final answer
    x = 175,120.63

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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.