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Finding the Fourth Proportional to 326,037.70, 489,056.55 and 231,559.30

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Solution

The fourth proportional to 326,037.70, 489,056.55 and 231,559.30 is: 347,338.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,037.70 : 489,056.55 = 231,559.30 : x
  2. Step 2: Convert to fraction form
    326,037.70/489,056.55 = 231,559.30/x
  3. Step 3: Cross multiply
    326,037.70x = 489,056.55 × 231,559.30
  4. Step 4: Simplify right side
    326,037.70x = 113,245,592,378.42
  5. Step 5: Solve for x
    x = 113,245,592,378.42/326,037.70
  6. Step 6: Final answer
    x = 347,338.95

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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.