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Finding the Fourth Proportional to 221,531.46, 305,709.50 and 126,036.11

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Solution

The fourth proportional to 221,531.46, 305,709.50 and 126,036.11 is: 173,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,531.46 : 305,709.50 = 126,036.11 : x
  2. Step 2: Convert to fraction form
    221,531.46/305,709.50 = 126,036.11/x
  3. Step 3: Cross multiply
    221,531.46x = 305,709.50 × 126,036.11
  4. Step 4: Simplify right side
    221,531.46x = 38,530,434,641.50
  5. Step 5: Solve for x
    x = 38,530,434,641.50/221,531.46
  6. Step 6: Final answer
    x = 173,927.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.