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Finding the Fourth Proportional to 300,403.81, 450,604.57 and 122,910.77

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Solution

The fourth proportional to 300,403.81, 450,604.57 and 122,910.77 is: 184,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,403.81 : 450,604.57 = 122,910.77 : x
  2. Step 2: Convert to fraction form
    300,403.81/450,604.57 = 122,910.77/x
  3. Step 3: Cross multiply
    300,403.81x = 450,604.57 × 122,910.77
  4. Step 4: Simplify right side
    300,403.81x = 55,384,155,713.91
  5. Step 5: Solve for x
    x = 55,384,155,713.91/300,403.81
  6. Step 6: Final answer
    x = 184,365.69

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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.