Home / 286,091.75-394,762.77-171,343.51

Finding the Fourth Proportional to 286,091.75, 394,762.77 and 171,343.51

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Solution

The fourth proportional to 286,091.75, 394,762.77 and 171,343.51 is: 236,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,091.75 : 394,762.77 = 171,343.51 : x
  2. Step 2: Convert to fraction form
    286,091.75/394,762.77 = 171,343.51/x
  3. Step 3: Cross multiply
    286,091.75x = 394,762.77 × 171,343.51
  4. Step 4: Simplify right side
    286,091.75x = 67,640,037,642.22
  5. Step 5: Solve for x
    x = 67,640,037,642.22/286,091.75
  6. Step 6: Final answer
    x = 236,427.78

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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.