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Finding the Fourth Proportional to 330,007.86, 455,408.19 and 179,104.86

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Solution

The fourth proportional to 330,007.86, 455,408.19 and 179,104.86 is: 247,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,007.86 : 455,408.19 = 179,104.86 : x
  2. Step 2: Convert to fraction form
    330,007.86/455,408.19 = 179,104.86/x
  3. Step 3: Cross multiply
    330,007.86x = 455,408.19 × 179,104.86
  4. Step 4: Simplify right side
    330,007.86x = 81,565,820,112.80
  5. Step 5: Solve for x
    x = 81,565,820,112.80/330,007.86
  6. Step 6: Final answer
    x = 247,163.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.