Home / 221,729.73-306,011.34-126,221.01

Finding the Fourth Proportional to 221,729.73, 306,011.34 and 126,221.01

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Solution

The fourth proportional to 221,729.73, 306,011.34 and 126,221.01 is: 174,198.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,729.73 : 306,011.34 = 126,221.01 : x
  2. Step 2: Convert to fraction form
    221,729.73/306,011.34 = 126,221.01/x
  3. Step 3: Cross multiply
    221,729.73x = 306,011.34 × 126,221.01
  4. Step 4: Simplify right side
    221,729.73x = 38,625,060,406.25
  5. Step 5: Solve for x
    x = 38,625,060,406.25/221,729.73
  6. Step 6: Final answer
    x = 174,198.83

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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.