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Finding the Fourth Proportional to 220,077.08, 330,104.75 and 128,944.11

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Solution

The fourth proportional to 220,077.08, 330,104.75 and 128,944.11 is: 193,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,077.08 : 330,104.75 = 128,944.11 : x
  2. Step 2: Convert to fraction form
    220,077.08/330,104.75 = 128,944.11/x
  3. Step 3: Cross multiply
    220,077.08x = 330,104.75 × 128,944.11
  4. Step 4: Simplify right side
    220,077.08x = 42,565,062,550.80
  5. Step 5: Solve for x
    x = 42,565,062,550.80/220,077.08
  6. Step 6: Final answer
    x = 193,409.80

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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.