Home / 210,115.26-291,185.73-206,127.90

Finding the Fourth Proportional to 210,115.26, 291,185.73 and 206,127.90

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Solution

The fourth proportional to 210,115.26, 291,185.73 and 206,127.90 is: 285,659.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,115.26 : 291,185.73 = 206,127.90 : x
  2. Step 2: Convert to fraction form
    210,115.26/291,185.73 = 206,127.90/x
  3. Step 3: Cross multiply
    210,115.26x = 291,185.73 × 206,127.90
  4. Step 4: Simplify right side
    210,115.26x = 60,021,503,034.87
  5. Step 5: Solve for x
    x = 60,021,503,034.87/210,115.26
  6. Step 6: Final answer
    x = 285,659.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.