Home / 327,973.87-492,028.88-138,435.83

Finding the Fourth Proportional to 327,973.87, 492,028.88 and 138,435.83

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Solution

The fourth proportional to 327,973.87, 492,028.88 and 138,435.83 is: 207,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,973.87 : 492,028.88 = 138,435.83 : x
  2. Step 2: Convert to fraction form
    327,973.87/492,028.88 = 138,435.83/x
  3. Step 3: Cross multiply
    327,973.87x = 492,028.88 × 138,435.83
  4. Step 4: Simplify right side
    327,973.87x = 68,114,423,234.45
  5. Step 5: Solve for x
    x = 68,114,423,234.45/327,973.87
  6. Step 6: Final answer
    x = 207,682.47

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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.