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Finding the Fourth Proportional to 220,965.60, 331,448.40 and 73,221.60

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Solution

The fourth proportional to 220,965.60, 331,448.40 and 73,221.60 is: 109,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,965.60 : 331,448.40 = 73,221.60 : x
  2. Step 2: Convert to fraction form
    220,965.60/331,448.40 = 73,221.60/x
  3. Step 3: Cross multiply
    220,965.60x = 331,448.40 × 73,221.60
  4. Step 4: Simplify right side
    220,965.60x = 24,269,182,165.44
  5. Step 5: Solve for x
    x = 24,269,182,165.44/220,965.60
  6. Step 6: Final answer
    x = 109,832.40

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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.