Home / 279,144.22-418,653.42-79,460.18

Finding the Fourth Proportional to 279,144.22, 418,653.42 and 79,460.18

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Solution

The fourth proportional to 279,144.22, 418,653.42 and 79,460.18 is: 119,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,144.22 : 418,653.42 = 79,460.18 : x
  2. Step 2: Convert to fraction form
    279,144.22/418,653.42 = 79,460.18/x
  3. Step 3: Cross multiply
    279,144.22x = 418,653.42 × 79,460.18
  4. Step 4: Simplify right side
    279,144.22x = 33,266,276,110.82
  5. Step 5: Solve for x
    x = 33,266,276,110.82/279,144.22
  6. Step 6: Final answer
    x = 119,172.36

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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.