Home / 286,136.32-394,868.10-158,811.88

Finding the Fourth Proportional to 286,136.32, 394,868.10 and 158,811.88

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Solution

The fourth proportional to 286,136.32, 394,868.10 and 158,811.88 is: 219,160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,136.32 : 394,868.10 = 158,811.88 : x
  2. Step 2: Convert to fraction form
    286,136.32/394,868.10 = 158,811.88/x
  3. Step 3: Cross multiply
    286,136.32x = 394,868.10 × 158,811.88
  4. Step 4: Simplify right side
    286,136.32x = 62,709,745,313.03
  5. Step 5: Solve for x
    x = 62,709,745,313.03/286,136.32
  6. Step 6: Final answer
    x = 219,160.38

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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.