Home / 259,911.77-389,553.50-126,592.25

Finding the Fourth Proportional to 259,911.77, 389,553.50 and 126,592.25

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Solution

The fourth proportional to 259,911.77, 389,553.50 and 126,592.25 is: 189,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,911.77 : 389,553.50 = 126,592.25 : x
  2. Step 2: Convert to fraction form
    259,911.77/389,553.50 = 126,592.25/x
  3. Step 3: Cross multiply
    259,911.77x = 389,553.50 × 126,592.25
  4. Step 4: Simplify right side
    259,911.77x = 49,314,453,427.41
  5. Step 5: Solve for x
    x = 49,314,453,427.41/259,911.77
  6. Step 6: Final answer
    x = 189,735.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.