Home / 221,739.82-306,001.31-126,246.56

Finding the Fourth Proportional to 221,739.82, 306,001.31 and 126,246.56

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Solution

The fourth proportional to 221,739.82, 306,001.31 and 126,246.56 is: 174,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,739.82 : 306,001.31 = 126,246.56 : x
  2. Step 2: Convert to fraction form
    221,739.82/306,001.31 = 126,246.56/x
  3. Step 3: Cross multiply
    221,739.82x = 306,001.31 × 126,246.56
  4. Step 4: Simplify right side
    221,739.82x = 38,631,610,581.75
  5. Step 5: Solve for x
    x = 38,631,610,581.75/221,739.82
  6. Step 6: Final answer
    x = 174,220.45

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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.