Home / 305,983.31-458,974.18-81,343.64

Finding the Fourth Proportional to 305,983.31, 458,974.18 and 81,343.64

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Solution

The fourth proportional to 305,983.31, 458,974.18 and 81,343.64 is: 122,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,983.31 : 458,974.18 = 81,343.64 : x
  2. Step 2: Convert to fraction form
    305,983.31/458,974.18 = 81,343.64/x
  3. Step 3: Cross multiply
    305,983.31x = 458,974.18 × 81,343.64
  4. Step 4: Simplify right side
    305,983.31x = 37,334,631,716.33
  5. Step 5: Solve for x
    x = 37,334,631,716.33/305,983.31
  6. Step 6: Final answer
    x = 122,015.26

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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.