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Finding the Fourth Proportional to 351,655.38, 485,284.62 and 190,511.55

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Solution

The fourth proportional to 351,655.38, 485,284.62 and 190,511.55 is: 262,906.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,655.38 : 485,284.62 = 190,511.55 : x
  2. Step 2: Convert to fraction form
    351,655.38/485,284.62 = 190,511.55/x
  3. Step 3: Cross multiply
    351,655.38x = 485,284.62 × 190,511.55
  4. Step 4: Simplify right side
    351,655.38x = 92,452,322,720.94
  5. Step 5: Solve for x
    x = 92,452,322,720.94/351,655.38
  6. Step 6: Final answer
    x = 262,906.04

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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.