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Finding the Fourth Proportional to 493,531.20, 740,469.60 and 213,249.60

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Solution

The fourth proportional to 493,531.20, 740,469.60 and 213,249.60 is: 319,949.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,531.20 : 740,469.60 = 213,249.60 : x
  2. Step 2: Convert to fraction form
    493,531.20/740,469.60 = 213,249.60/x
  3. Step 3: Cross multiply
    493,531.20x = 740,469.60 × 213,249.60
  4. Step 4: Simplify right side
    493,531.20x = 157,904,846,012.16
  5. Step 5: Solve for x
    x = 157,904,846,012.16/493,531.20
  6. Step 6: Final answer
    x = 319,949.07

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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.