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Finding the Fourth Proportional to 326,223.30, 489,168.90 and 126,600.96

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Solution

The fourth proportional to 326,223.30, 489,168.90 and 126,600.96 is: 189,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,223.30 : 489,168.90 = 126,600.96 : x
  2. Step 2: Convert to fraction form
    326,223.30/489,168.90 = 126,600.96/x
  3. Step 3: Cross multiply
    326,223.30x = 489,168.90 × 126,600.96
  4. Step 4: Simplify right side
    326,223.30x = 61,929,252,342.14
  5. Step 5: Solve for x
    x = 61,929,252,342.14/326,223.30
  6. Step 6: Final answer
    x = 189,837.00

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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.