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Finding the Fourth Proportional to 303,650.25, 455,164.32 and 126,260.25

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Solution

The fourth proportional to 303,650.25, 455,164.32 and 126,260.25 is: 189,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,650.25 : 455,164.32 = 126,260.25 : x
  2. Step 2: Convert to fraction form
    303,650.25/455,164.32 = 126,260.25/x
  3. Step 3: Cross multiply
    303,650.25x = 455,164.32 × 126,260.25
  4. Step 4: Simplify right side
    303,650.25x = 57,469,160,834.28
  5. Step 5: Solve for x
    x = 57,469,160,834.28/303,650.25
  6. Step 6: Final answer
    x = 189,261.04

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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.