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Finding the Fourth Proportional to 300,221.63, 450,337.90 and 100,504.79

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Solution

The fourth proportional to 300,221.63, 450,337.90 and 100,504.79 is: 150,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,221.63 : 450,337.90 = 100,504.79 : x
  2. Step 2: Convert to fraction form
    300,221.63/450,337.90 = 100,504.79/x
  3. Step 3: Cross multiply
    300,221.63x = 450,337.90 × 100,504.79
  4. Step 4: Simplify right side
    300,221.63x = 45,261,113,816.85
  5. Step 5: Solve for x
    x = 45,261,113,816.85/300,221.63
  6. Step 6: Final answer
    x = 150,759.01

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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.