Home / 351,531.38-485,110.90-190,382.75

Finding the Fourth Proportional to 351,531.38, 485,110.90 and 190,382.75

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Solution

The fourth proportional to 351,531.38, 485,110.90 and 190,382.75 is: 262,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,531.38 : 485,110.90 = 190,382.75 : x
  2. Step 2: Convert to fraction form
    351,531.38/485,110.90 = 190,382.75/x
  3. Step 3: Cross multiply
    351,531.38x = 485,110.90 × 190,382.75
  4. Step 4: Simplify right side
    351,531.38x = 92,356,744,295.46
  5. Step 5: Solve for x
    x = 92,356,744,295.46/351,531.38
  6. Step 6: Final answer
    x = 262,726.88

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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.