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Finding the Fourth Proportional to 300,609.54, 450,921.60 and 100,936.44

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Solution

The fourth proportional to 300,609.54, 450,921.60 and 100,936.44 is: 151,407.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,609.54 : 450,921.60 = 100,936.44 : x
  2. Step 2: Convert to fraction form
    300,609.54/450,921.60 = 100,936.44/x
  3. Step 3: Cross multiply
    300,609.54x = 450,921.60 × 100,936.44
  4. Step 4: Simplify right side
    300,609.54x = 45,514,421,023.10
  5. Step 5: Solve for x
    x = 45,514,421,023.10/300,609.54
  6. Step 6: Final answer
    x = 151,407.11

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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.