Home / 206,588.40-310,538.70-194,778.60

Finding the Fourth Proportional to 206,588.40, 310,538.70 and 194,778.60

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Solution

The fourth proportional to 206,588.40, 310,538.70 and 194,778.60 is: 292,786.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,588.40 : 310,538.70 = 194,778.60 : x
  2. Step 2: Convert to fraction form
    206,588.40/310,538.70 = 194,778.60/x
  3. Step 3: Cross multiply
    206,588.40x = 310,538.70 × 194,778.60
  4. Step 4: Simplify right side
    206,588.40x = 60,486,293,231.82
  5. Step 5: Solve for x
    x = 60,486,293,231.82/206,588.40
  6. Step 6: Final answer
    x = 292,786.49

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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.