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Finding the Fourth Proportional to 301,745.75, 452,618.67 and 80,129.75

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Solution

The fourth proportional to 301,745.75, 452,618.67 and 80,129.75 is: 120,194.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,745.75 : 452,618.67 = 80,129.75 : x
  2. Step 2: Convert to fraction form
    301,745.75/452,618.67 = 80,129.75/x
  3. Step 3: Cross multiply
    301,745.75x = 452,618.67 × 80,129.75
  4. Step 4: Simplify right side
    301,745.75x = 36,268,220,872.43
  5. Step 5: Solve for x
    x = 36,268,220,872.43/301,745.75
  6. Step 6: Final answer
    x = 120,194.64

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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.