Home / 291,786.60-402,997.66-196,127.22

Finding the Fourth Proportional to 291,786.60, 402,997.66 and 196,127.22

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Solution

The fourth proportional to 291,786.60, 402,997.66 and 196,127.22 is: 270,878.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,786.60 : 402,997.66 = 196,127.22 : x
  2. Step 2: Convert to fraction form
    291,786.60/402,997.66 = 196,127.22/x
  3. Step 3: Cross multiply
    291,786.60x = 402,997.66 × 196,127.22
  4. Step 4: Simplify right side
    291,786.60x = 79,038,810,722.31
  5. Step 5: Solve for x
    x = 79,038,810,722.31/291,786.60
  6. Step 6: Final answer
    x = 270,878.82

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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.