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Finding the Fourth Proportional to 326,880.60, 490,061.70 and 179,136.60

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Solution

The fourth proportional to 326,880.60, 490,061.70 and 179,136.60 is: 268,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,880.60 : 490,061.70 = 179,136.60 : x
  2. Step 2: Convert to fraction form
    326,880.60/490,061.70 = 179,136.60/x
  3. Step 3: Cross multiply
    326,880.60x = 490,061.70 × 179,136.60
  4. Step 4: Simplify right side
    326,880.60x = 87,787,986,728.22
  5. Step 5: Solve for x
    x = 87,787,986,728.22/326,880.60
  6. Step 6: Final answer
    x = 268,562.85

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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.