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Finding the Fourth Proportional to 326,699.30, 489,753.02 and 226,906.58

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Solution

The fourth proportional to 326,699.30, 489,753.02 and 226,906.58 is: 340,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,699.30 : 489,753.02 = 226,906.58 : x
  2. Step 2: Convert to fraction form
    326,699.30/489,753.02 = 226,906.58/x
  3. Step 3: Cross multiply
    326,699.30x = 489,753.02 × 226,906.58
  4. Step 4: Simplify right side
    326,699.30x = 111,128,182,812.87
  5. Step 5: Solve for x
    x = 111,128,182,812.87/326,699.30
  6. Step 6: Final answer
    x = 340,154.33

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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.