Home / 351,755.21-485,422.67-190,610.15

Finding the Fourth Proportional to 351,755.21, 485,422.67 and 190,610.15

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Solution

The fourth proportional to 351,755.21, 485,422.67 and 190,610.15 is: 263,042.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,755.21 : 485,422.67 = 190,610.15 : x
  2. Step 2: Convert to fraction form
    351,755.21/485,422.67 = 190,610.15/x
  3. Step 3: Cross multiply
    351,755.21x = 485,422.67 × 190,610.15
  4. Step 4: Simplify right side
    351,755.21x = 92,526,484,919.33
  5. Step 5: Solve for x
    x = 92,526,484,919.33/351,755.21
  6. Step 6: Final answer
    x = 263,042.26

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1.5x scale

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.