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Finding the Fourth Proportional to 351,732.60, 485,362.26 and 198,784.62

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Solution

The fourth proportional to 351,732.60, 485,362.26 and 198,784.62 is: 274,306.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,732.60 : 485,362.26 = 198,784.62 : x
  2. Step 2: Convert to fraction form
    351,732.60/485,362.26 = 198,784.62/x
  3. Step 3: Cross multiply
    351,732.60x = 485,362.26 × 198,784.62
  4. Step 4: Simplify right side
    351,732.60x = 96,482,552,416.44
  5. Step 5: Solve for x
    x = 96,482,552,416.44/351,732.60
  6. Step 6: Final answer
    x = 274,306.54

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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.