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Finding the Fourth Proportional to 221,958.40, 332,937.60 and 74,214.40

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Solution

The fourth proportional to 221,958.40, 332,937.60 and 74,214.40 is: 111,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,958.40 : 332,937.60 = 74,214.40 : x
  2. Step 2: Convert to fraction form
    221,958.40/332,937.60 = 74,214.40/x
  3. Step 3: Cross multiply
    221,958.40x = 332,937.60 × 74,214.40
  4. Step 4: Simplify right side
    221,958.40x = 24,708,764,221.44
  5. Step 5: Solve for x
    x = 24,708,764,221.44/221,958.40
  6. Step 6: Final answer
    x = 111,321.60

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1.5x scale

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.