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Finding the Fourth Proportional to 303,650.63, 455,164.89 and 126,260.63

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Solution

The fourth proportional to 303,650.63, 455,164.89 and 126,260.63 is: 189,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,650.63 : 455,164.89 = 126,260.63 : x
  2. Step 2: Convert to fraction form
    303,650.63/455,164.89 = 126,260.63/x
  3. Step 3: Cross multiply
    303,650.63x = 455,164.89 × 126,260.63
  4. Step 4: Simplify right side
    303,650.63x = 57,469,403,489.46
  5. Step 5: Solve for x
    x = 57,469,403,489.46/303,650.63
  6. Step 6: Final answer
    x = 189,261.60

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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.