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Finding the Fourth Proportional to 321,249.60, 481,413.60 and 236,347.20

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Solution

The fourth proportional to 321,249.60, 481,413.60 and 236,347.20 is: 354,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,249.60 : 481,413.60 = 236,347.20 : x
  2. Step 2: Convert to fraction form
    321,249.60/481,413.60 = 236,347.20/x
  3. Step 3: Cross multiply
    321,249.60x = 481,413.60 × 236,347.20
  4. Step 4: Simplify right side
    321,249.60x = 113,780,756,401.92
  5. Step 5: Solve for x
    x = 113,780,756,401.92/321,249.60
  6. Step 6: Final answer
    x = 354,181.78

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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.