Home / 561,146.40-842,087.88-206,163.36

Finding the Fourth Proportional to 561,146.40, 842,087.88 and 206,163.36

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Solution

The fourth proportional to 561,146.40, 842,087.88 and 206,163.36 is: 309,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,146.40 : 842,087.88 = 206,163.36 : x
  2. Step 2: Convert to fraction form
    561,146.40/842,087.88 = 206,163.36/x
  3. Step 3: Cross multiply
    561,146.40x = 842,087.88 × 206,163.36
  4. Step 4: Simplify right side
    561,146.40x = 173,607,666,756.08
  5. Step 5: Solve for x
    x = 173,607,666,756.08/561,146.40
  6. Step 6: Final answer
    x = 309,380.34

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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.