Home / 282,517.11-389,876.29-155,192.69

Finding the Fourth Proportional to 282,517.11, 389,876.29 and 155,192.69

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Solution

The fourth proportional to 282,517.11, 389,876.29 and 155,192.69 is: 214,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,517.11 : 389,876.29 = 155,192.69 : x
  2. Step 2: Convert to fraction form
    282,517.11/389,876.29 = 155,192.69/x
  3. Step 3: Cross multiply
    282,517.11x = 389,876.29 × 155,192.69
  4. Step 4: Simplify right side
    282,517.11x = 60,505,950,799.03
  5. Step 5: Solve for x
    x = 60,505,950,799.03/282,517.11
  6. Step 6: Final answer
    x = 214,167.39

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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.