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Finding the Fourth Proportional to 172,550.44, 258,786.78 and 67,315.24

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Solution

The fourth proportional to 172,550.44, 258,786.78 and 67,315.24 is: 100,957.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,550.44 : 258,786.78 = 67,315.24 : x
  2. Step 2: Convert to fraction form
    172,550.44/258,786.78 = 67,315.24/x
  3. Step 3: Cross multiply
    172,550.44x = 258,786.78 × 67,315.24
  4. Step 4: Simplify right side
    172,550.44x = 17,420,294,204.53
  5. Step 5: Solve for x
    x = 17,420,294,204.53/172,550.44
  6. Step 6: Final answer
    x = 100,957.69

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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.