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Finding the Fourth Proportional to 326,292.96, 489,335.76 and 221,783.52

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Solution

The fourth proportional to 326,292.96, 489,335.76 and 221,783.52 is: 332,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,292.96 : 489,335.76 = 221,783.52 : x
  2. Step 2: Convert to fraction form
    326,292.96/489,335.76 = 221,783.52/x
  3. Step 3: Cross multiply
    326,292.96x = 489,335.76 × 221,783.52
  4. Step 4: Simplify right side
    326,292.96x = 108,526,607,314.68
  5. Step 5: Solve for x
    x = 108,526,607,314.68/326,292.96
  6. Step 6: Final answer
    x = 332,604.81

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1.5x scale

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.