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Finding the Fourth Proportional to 351,504.60, 485,073.92 and 190,355.96

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Solution

The fourth proportional to 351,504.60, 485,073.92 and 190,355.96 is: 262,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,504.60 : 485,073.92 = 190,355.96 : x
  2. Step 2: Convert to fraction form
    351,504.60/485,073.92 = 190,355.96/x
  3. Step 3: Cross multiply
    351,504.60x = 485,073.92 × 190,355.96
  4. Step 4: Simplify right side
    351,504.60x = 92,336,709,763.08
  5. Step 5: Solve for x
    x = 92,336,709,763.08/351,504.60
  6. Step 6: Final answer
    x = 262,689.91

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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.