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Finding the Fourth Proportional to 486,166.60, 729,249.90 and 308,873.80

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Solution

The fourth proportional to 486,166.60, 729,249.90 and 308,873.80 is: 463,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,166.60 : 729,249.90 = 308,873.80 : x
  2. Step 2: Convert to fraction form
    486,166.60/729,249.90 = 308,873.80/x
  3. Step 3: Cross multiply
    486,166.60x = 729,249.90 × 308,873.80
  4. Step 4: Simplify right side
    486,166.60x = 225,246,187,762.62
  5. Step 5: Solve for x
    x = 225,246,187,762.62/486,166.60
  6. Step 6: Final answer
    x = 463,310.70

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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.