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Finding the Fourth Proportional to 445,690.25, 668,367.75 and 161,310.52

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Solution

The fourth proportional to 445,690.25, 668,367.75 and 161,310.52 is: 241,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,690.25 : 668,367.75 = 161,310.52 : x
  2. Step 2: Convert to fraction form
    445,690.25/668,367.75 = 161,310.52/x
  3. Step 3: Cross multiply
    445,690.25x = 668,367.75 × 161,310.52
  4. Step 4: Simplify right side
    445,690.25x = 107,814,750,744.10
  5. Step 5: Solve for x
    x = 107,814,750,744.10/445,690.25
  6. Step 6: Final answer
    x = 241,905.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.