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Finding the Fourth Proportional to 351,649.35, 485,275.46 and 190,508.42

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Solution

The fourth proportional to 351,649.35, 485,275.46 and 190,508.42 is: 262,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,649.35 : 485,275.46 = 190,508.42 : x
  2. Step 2: Convert to fraction form
    351,649.35/485,275.46 = 190,508.42/x
  3. Step 3: Cross multiply
    351,649.35x = 485,275.46 × 190,508.42
  4. Step 4: Simplify right side
    351,649.35x = 92,449,061,410.02
  5. Step 5: Solve for x
    x = 92,449,061,410.02/351,649.35
  6. Step 6: Final answer
    x = 262,901.27

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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.