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Finding the Fourth Proportional to 351,633.68, 485,253.28 and 190,488.54

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Solution

The fourth proportional to 351,633.68, 485,253.28 and 190,488.54 is: 262,873.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,633.68 : 485,253.28 = 190,488.54 : x
  2. Step 2: Convert to fraction form
    351,633.68/485,253.28 = 190,488.54/x
  3. Step 3: Cross multiply
    351,633.68x = 485,253.28 × 190,488.54
  4. Step 4: Simplify right side
    351,633.68x = 92,435,188,837.41
  5. Step 5: Solve for x
    x = 92,435,188,837.41/351,633.68
  6. Step 6: Final answer
    x = 262,873.54

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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.