Home / 418,623.40-627,932.22-138,163.24

Finding the Fourth Proportional to 418,623.40, 627,932.22 and 138,163.24

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Solution

The fourth proportional to 418,623.40, 627,932.22 and 138,163.24 is: 207,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,623.40 : 627,932.22 = 138,163.24 : x
  2. Step 2: Convert to fraction form
    418,623.40/627,932.22 = 138,163.24/x
  3. Step 3: Cross multiply
    418,623.40x = 627,932.22 × 138,163.24
  4. Step 4: Simplify right side
    418,623.40x = 86,757,150,015.59
  5. Step 5: Solve for x
    x = 86,757,150,015.59/418,623.40
  6. Step 6: Final answer
    x = 207,243.91

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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.