Home / 306,357.11-422,656.83-190,016.75

Finding the Fourth Proportional to 306,357.11, 422,656.83 and 190,016.75

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Solution

The fourth proportional to 306,357.11, 422,656.83 and 190,016.75 is: 262,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,357.11 : 422,656.83 = 190,016.75 : x
  2. Step 2: Convert to fraction form
    306,357.11/422,656.83 = 190,016.75/x
  3. Step 3: Cross multiply
    306,357.11x = 422,656.83 × 190,016.75
  4. Step 4: Simplify right side
    306,357.11x = 80,311,877,201.90
  5. Step 5: Solve for x
    x = 80,311,877,201.90/306,357.11
  6. Step 6: Final answer
    x = 262,151.18

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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.