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Finding the Fourth Proportional to 300,446.85, 450,656.60 and 100,751.88

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Solution

The fourth proportional to 300,446.85, 450,656.60 and 100,751.88 is: 151,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,446.85 : 450,656.60 = 100,751.88 : x
  2. Step 2: Convert to fraction form
    300,446.85/450,656.60 = 100,751.88/x
  3. Step 3: Cross multiply
    300,446.85x = 450,656.60 × 100,751.88
  4. Step 4: Simplify right side
    300,446.85x = 45,404,499,180.65
  5. Step 5: Solve for x
    x = 45,404,499,180.65/300,446.85
  6. Step 6: Final answer
    x = 151,123.23

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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.