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Finding the Fourth Proportional to 300,202.80, 450,304.80 and 122,709.72

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Solution

The fourth proportional to 300,202.80, 450,304.80 and 122,709.72 is: 184,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,202.80 : 450,304.80 = 122,709.72 : x
  2. Step 2: Convert to fraction form
    300,202.80/450,304.80 = 122,709.72/x
  3. Step 3: Cross multiply
    300,202.80x = 450,304.80 × 122,709.72
  4. Step 4: Simplify right side
    300,202.80x = 55,256,775,922.66
  5. Step 5: Solve for x
    x = 55,256,775,922.66/300,202.80
  6. Step 6: Final answer
    x = 184,064.83

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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.