Home / 306,619.03-422,894.19-199,223.98

Finding the Fourth Proportional to 306,619.03, 422,894.19 and 199,223.98

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Solution

The fourth proportional to 306,619.03, 422,894.19 and 199,223.98 is: 274,773.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,619.03 : 422,894.19 = 199,223.98 : x
  2. Step 2: Convert to fraction form
    306,619.03/422,894.19 = 199,223.98/x
  3. Step 3: Cross multiply
    306,619.03x = 422,894.19 × 199,223.98
  4. Step 4: Simplify right side
    306,619.03x = 84,250,663,650.68
  5. Step 5: Solve for x
    x = 84,250,663,650.68/306,619.03
  6. Step 6: Final answer
    x = 274,773.11

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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.