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Finding the Fourth Proportional to 275,743.58, 380,481.53 and 172,365.68

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Solution

The fourth proportional to 275,743.58, 380,481.53 and 172,365.68 is: 237,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,743.58 : 380,481.53 = 172,365.68 : x
  2. Step 2: Convert to fraction form
    275,743.58/380,481.53 = 172,365.68/x
  3. Step 3: Cross multiply
    275,743.58x = 380,481.53 × 172,365.68
  4. Step 4: Simplify right side
    275,743.58x = 65,581,957,645.89
  5. Step 5: Solve for x
    x = 65,581,957,645.89/275,743.58
  6. Step 6: Final answer
    x = 237,836.75

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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.