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Finding the Fourth Proportional to 666,107.88, 998,694.48 and 245,329.80

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Solution

The fourth proportional to 666,107.88, 998,694.48 and 245,329.80 is: 367,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,107.88 : 998,694.48 = 245,329.80 : x
  2. Step 2: Convert to fraction form
    666,107.88/998,694.48 = 245,329.80/x
  3. Step 3: Cross multiply
    666,107.88x = 998,694.48 × 245,329.80
  4. Step 4: Simplify right side
    666,107.88x = 245,009,517,039.50
  5. Step 5: Solve for x
    x = 245,009,517,039.50/666,107.88
  6. Step 6: Final answer
    x = 367,822.58

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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.