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Finding the Fourth Proportional to 221,454.40, 332,327.40 and 126,684.40

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Solution

The fourth proportional to 221,454.40, 332,327.40 and 126,684.40 is: 190,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,454.40 : 332,327.40 = 126,684.40 : x
  2. Step 2: Convert to fraction form
    221,454.40/332,327.40 = 126,684.40/x
  3. Step 3: Cross multiply
    221,454.40x = 332,327.40 × 126,684.40
  4. Step 4: Simplify right side
    221,454.40x = 42,100,697,272.56
  5. Step 5: Solve for x
    x = 42,100,697,272.56/221,454.40
  6. Step 6: Final answer
    x = 190,110.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.