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Finding the Fourth Proportional to 275,537.53, 380,421.12 and 168,169.80

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Solution

The fourth proportional to 275,537.53, 380,421.12 and 168,169.80 is: 232,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,537.53 : 380,421.12 = 168,169.80 : x
  2. Step 2: Convert to fraction form
    275,537.53/380,421.12 = 168,169.80/x
  3. Step 3: Cross multiply
    275,537.53x = 380,421.12 × 168,169.80
  4. Step 4: Simplify right side
    275,537.53x = 63,975,345,723.39
  5. Step 5: Solve for x
    x = 63,975,345,723.39/275,537.53
  6. Step 6: Final answer
    x = 232,183.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.