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Finding the Fourth Proportional to 300,728.15, 450,950.97 and 174,404.30

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Solution

The fourth proportional to 300,728.15, 450,950.97 and 174,404.30 is: 261,524.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,728.15 : 450,950.97 = 174,404.30 : x
  2. Step 2: Convert to fraction form
    300,728.15/450,950.97 = 174,404.30/x
  3. Step 3: Cross multiply
    300,728.15x = 450,950.97 × 174,404.30
  4. Step 4: Simplify right side
    300,728.15x = 78,647,788,257.17
  5. Step 5: Solve for x
    x = 78,647,788,257.17/300,728.15
  6. Step 6: Final answer
    x = 261,524.53

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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.