Home / 286,136.94-394,798.78-171,434.24

Finding the Fourth Proportional to 286,136.94, 394,798.78 and 171,434.24

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Solution

The fourth proportional to 286,136.94, 394,798.78 and 171,434.24 is: 236,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,136.94 : 394,798.78 = 171,434.24 : x
  2. Step 2: Convert to fraction form
    286,136.94/394,798.78 = 171,434.24/x
  3. Step 3: Cross multiply
    286,136.94x = 394,798.78 × 171,434.24
  4. Step 4: Simplify right side
    286,136.94x = 67,682,028,802.23
  5. Step 5: Solve for x
    x = 67,682,028,802.23/286,136.94
  6. Step 6: Final answer
    x = 236,537.19

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1.5x scale

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.