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Finding the Fourth Proportional to 326,330.62, 489,495.96 and 115,976.86

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Solution

The fourth proportional to 326,330.62, 489,495.96 and 115,976.86 is: 173,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,330.62 : 489,495.96 = 115,976.86 : x
  2. Step 2: Convert to fraction form
    326,330.62/489,495.96 = 115,976.86/x
  3. Step 3: Cross multiply
    326,330.62x = 489,495.96 × 115,976.86
  4. Step 4: Simplify right side
    326,330.62x = 56,770,204,423.49
  5. Step 5: Solve for x
    x = 56,770,204,423.49/326,330.62
  6. Step 6: Final answer
    x = 173,965.30

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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.