Home / 274,163.81-378,343.91-153,305.33

Finding the Fourth Proportional to 274,163.81, 378,343.91 and 153,305.33

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Solution

The fourth proportional to 274,163.81, 378,343.91 and 153,305.33 is: 211,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,163.81 : 378,343.91 = 153,305.33 : x
  2. Step 2: Convert to fraction form
    274,163.81/378,343.91 = 153,305.33/x
  3. Step 3: Cross multiply
    274,163.81x = 378,343.91 × 153,305.33
  4. Step 4: Simplify right side
    274,163.81x = 58,002,136,467.58
  5. Step 5: Solve for x
    x = 58,002,136,467.58/274,163.81
  6. Step 6: Final answer
    x = 211,560.15

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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.