Home / 291,786.19-402,997.10-196,126.81

Finding the Fourth Proportional to 291,786.19, 402,997.10 and 196,126.81

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Solution

The fourth proportional to 291,786.19, 402,997.10 and 196,126.81 is: 270,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,786.19 : 402,997.10 = 196,126.81 : x
  2. Step 2: Convert to fraction form
    291,786.19/402,997.10 = 196,126.81/x
  3. Step 3: Cross multiply
    291,786.19x = 402,997.10 × 196,126.81
  4. Step 4: Simplify right side
    291,786.19x = 79,038,535,675.68
  5. Step 5: Solve for x
    x = 79,038,535,675.68/291,786.19
  6. Step 6: Final answer
    x = 270,878.26

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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.