Home / 217,839.30-300,569.10-131,796.15

Finding the Fourth Proportional to 217,839.30, 300,569.10 and 131,796.15

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Solution

The fourth proportional to 217,839.30, 300,569.10 and 131,796.15 is: 181,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,839.30 : 300,569.10 = 131,796.15 : x
  2. Step 2: Convert to fraction form
    217,839.30/300,569.10 = 131,796.15/x
  3. Step 3: Cross multiply
    217,839.30x = 300,569.10 × 131,796.15
  4. Step 4: Simplify right side
    217,839.30x = 39,613,850,188.97
  5. Step 5: Solve for x
    x = 39,613,850,188.97/217,839.30
  6. Step 6: Final answer
    x = 181,848.96

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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.