Home / 279,497.36-419,181.24-79,812.56

Finding the Fourth Proportional to 279,497.36, 419,181.24 and 79,812.56

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Solution

The fourth proportional to 279,497.36, 419,181.24 and 79,812.56 is: 119,700.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,497.36 : 419,181.24 = 79,812.56 : x
  2. Step 2: Convert to fraction form
    279,497.36/419,181.24 = 79,812.56/x
  3. Step 3: Cross multiply
    279,497.36x = 419,181.24 × 79,812.56
  4. Step 4: Simplify right side
    279,497.36x = 33,455,927,868.37
  5. Step 5: Solve for x
    x = 33,455,927,868.37/279,497.36
  6. Step 6: Final answer
    x = 119,700.34

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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.