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Finding the Fourth Proportional to 326,407.96, 489,218.26 and 168,550.36

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Solution

The fourth proportional to 326,407.96, 489,218.26 and 168,550.36 is: 252,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,407.96 : 489,218.26 = 168,550.36 : x
  2. Step 2: Convert to fraction form
    326,407.96/489,218.26 = 168,550.36/x
  3. Step 3: Cross multiply
    326,407.96x = 489,218.26 × 168,550.36
  4. Step 4: Simplify right side
    326,407.96x = 82,457,913,841.57
  5. Step 5: Solve for x
    x = 82,457,913,841.57/326,407.96
  6. Step 6: Final answer
    x = 252,622.25

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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.