Home / 306,178.24-422,540.40-170,214.46

Finding the Fourth Proportional to 306,178.24, 422,540.40 and 170,214.46

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Solution

The fourth proportional to 306,178.24, 422,540.40 and 170,214.46 is: 234,903.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,178.24 : 422,540.40 = 170,214.46 : x
  2. Step 2: Convert to fraction form
    306,178.24/422,540.40 = 170,214.46/x
  3. Step 3: Cross multiply
    306,178.24x = 422,540.40 × 170,214.46
  4. Step 4: Simplify right side
    306,178.24x = 71,922,483,050.41
  5. Step 5: Solve for x
    x = 71,922,483,050.41/306,178.24
  6. Step 6: Final answer
    x = 234,903.97

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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.