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Finding the Fourth Proportional to 300,538.60, 450,092.25 and 173,911.90

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Solution

The fourth proportional to 300,538.60, 450,092.25 and 173,911.90 is: 260,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,538.60 : 450,092.25 = 173,911.90 : x
  2. Step 2: Convert to fraction form
    300,538.60/450,092.25 = 173,911.90/x
  3. Step 3: Cross multiply
    300,538.60x = 450,092.25 × 173,911.90
  4. Step 4: Simplify right side
    300,538.60x = 78,276,398,372.78
  5. Step 5: Solve for x
    x = 78,276,398,372.78/300,538.60
  6. Step 6: Final answer
    x = 260,453.73

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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.