Home / 291,786.35-402,997.31-196,126.97

Finding the Fourth Proportional to 291,786.35, 402,997.31 and 196,126.97

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Solution

The fourth proportional to 291,786.35, 402,997.31 and 196,126.97 is: 270,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,786.35 : 402,997.31 = 196,126.97 : x
  2. Step 2: Convert to fraction form
    291,786.35/402,997.31 = 196,126.97/x
  3. Step 3: Cross multiply
    291,786.35x = 402,997.31 × 196,126.97
  4. Step 4: Simplify right side
    291,786.35x = 79,038,641,328.45
  5. Step 5: Solve for x
    x = 79,038,641,328.45/291,786.35
  6. Step 6: Final answer
    x = 270,878.47

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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.