Home / 210,997.26-291,165.30-115,485.84

Finding the Fourth Proportional to 210,997.26, 291,165.30 and 115,485.84

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Solution

The fourth proportional to 210,997.26, 291,165.30 and 115,485.84 is: 159,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,997.26 : 291,165.30 = 115,485.84 : x
  2. Step 2: Convert to fraction form
    210,997.26/291,165.30 = 115,485.84/x
  3. Step 3: Cross multiply
    210,997.26x = 291,165.30 × 115,485.84
  4. Step 4: Simplify right side
    210,997.26x = 33,625,469,249.35
  5. Step 5: Solve for x
    x = 33,625,469,249.35/210,997.26
  6. Step 6: Final answer
    x = 159,364.48

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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.