Home / 275,231.14-379,788.60-154,347.55

Finding the Fourth Proportional to 275,231.14, 379,788.60 and 154,347.55

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Solution

The fourth proportional to 275,231.14, 379,788.60 and 154,347.55 is: 212,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,231.14 : 379,788.60 = 154,347.55 : x
  2. Step 2: Convert to fraction form
    275,231.14/379,788.60 = 154,347.55/x
  3. Step 3: Cross multiply
    275,231.14x = 379,788.60 × 154,347.55
  4. Step 4: Simplify right side
    275,231.14x = 58,619,437,643.12
  5. Step 5: Solve for x
    x = 58,619,437,643.12/275,231.14
  6. Step 6: Final answer
    x = 212,982.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.