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Finding the Fourth Proportional to 286,099.71, 394,668.45 and 169,745.46

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Solution

The fourth proportional to 286,099.71, 394,668.45 and 169,745.46 is: 234,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,099.71 : 394,668.45 = 169,745.46 : x
  2. Step 2: Convert to fraction form
    286,099.71/394,668.45 = 169,745.46/x
  3. Step 3: Cross multiply
    286,099.71x = 394,668.45 × 169,745.46
  4. Step 4: Simplify right side
    286,099.71x = 66,993,177,592.74
  5. Step 5: Solve for x
    x = 66,993,177,592.74/286,099.71
  6. Step 6: Final answer
    x = 234,160.24

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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.