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Finding the Fourth Proportional to 303,753.60, 455,630.40 and 126,201.60

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Solution

The fourth proportional to 303,753.60, 455,630.40 and 126,201.60 is: 189,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,753.60 : 455,630.40 = 126,201.60 : x
  2. Step 2: Convert to fraction form
    303,753.60/455,630.40 = 126,201.60/x
  3. Step 3: Cross multiply
    303,753.60x = 455,630.40 × 126,201.60
  4. Step 4: Simplify right side
    303,753.60x = 57,501,285,488.64
  5. Step 5: Solve for x
    x = 57,501,285,488.64/303,753.60
  6. Step 6: Final answer
    x = 189,302.40

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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.