Home / 306,268.31-422,764.59-178,984.55

Finding the Fourth Proportional to 306,268.31, 422,764.59 and 178,984.55

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Solution

The fourth proportional to 306,268.31, 422,764.59 and 178,984.55 is: 247,065.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,268.31 : 422,764.59 = 178,984.55 : x
  2. Step 2: Convert to fraction form
    306,268.31/422,764.59 = 178,984.55/x
  3. Step 3: Cross multiply
    306,268.31x = 422,764.59 × 178,984.55
  4. Step 4: Simplify right side
    306,268.31x = 75,668,327,783.26
  5. Step 5: Solve for x
    x = 75,668,327,783.26/306,268.31
  6. Step 6: Final answer
    x = 247,065.49

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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.