Home / 217,695.15-300,481.92-131,654.25

Finding the Fourth Proportional to 217,695.15, 300,481.92 and 131,654.25

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Solution

The fourth proportional to 217,695.15, 300,481.92 and 131,654.25 is: 181,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,695.15 : 300,481.92 = 131,654.25 : x
  2. Step 2: Convert to fraction form
    217,695.15/300,481.92 = 131,654.25/x
  3. Step 3: Cross multiply
    217,695.15x = 300,481.92 × 131,654.25
  4. Step 4: Simplify right side
    217,695.15x = 39,559,721,816.16
  5. Step 5: Solve for x
    x = 39,559,721,816.16/217,695.15
  6. Step 6: Final answer
    x = 181,720.73

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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.