Home / 306,221.43-422,599.64-170,269.35

Finding the Fourth Proportional to 306,221.43, 422,599.64 and 170,269.35

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Solution

The fourth proportional to 306,221.43, 422,599.64 and 170,269.35 is: 234,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,221.43 : 422,599.64 = 170,269.35 : x
  2. Step 2: Convert to fraction form
    306,221.43/422,599.64 = 170,269.35/x
  3. Step 3: Cross multiply
    306,221.43x = 422,599.64 × 170,269.35
  4. Step 4: Simplify right side
    306,221.43x = 71,955,766,013.03
  5. Step 5: Solve for x
    x = 71,955,766,013.03/306,221.43
  6. Step 6: Final answer
    x = 234,979.52

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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.