Home / 518,193.31-777,216.15-163,198.10

Finding the Fourth Proportional to 518,193.31, 777,216.15 and 163,198.10

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Solution

The fourth proportional to 518,193.31, 777,216.15 and 163,198.10 is: 244,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,193.31 : 777,216.15 = 163,198.10 : x
  2. Step 2: Convert to fraction form
    518,193.31/777,216.15 = 163,198.10/x
  3. Step 3: Cross multiply
    518,193.31x = 777,216.15 × 163,198.10
  4. Step 4: Simplify right side
    518,193.31x = 126,840,198,969.32
  5. Step 5: Solve for x
    x = 126,840,198,969.32/518,193.31
  6. Step 6: Final answer
    x = 244,773.90

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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.