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Finding the Fourth Proportional to 326,229.60, 489,344.40 and 112,997.10

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Solution

The fourth proportional to 326,229.60, 489,344.40 and 112,997.10 is: 169,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,229.60 : 489,344.40 = 112,997.10 : x
  2. Step 2: Convert to fraction form
    326,229.60/489,344.40 = 112,997.10/x
  3. Step 3: Cross multiply
    326,229.60x = 489,344.40 × 112,997.10
  4. Step 4: Simplify right side
    326,229.60x = 55,294,498,101.24
  5. Step 5: Solve for x
    x = 55,294,498,101.24/326,229.60
  6. Step 6: Final answer
    x = 169,495.65

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Similar ratio
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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.