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Finding the Fourth Proportional to 393,144.60, 589,716.90 and 168,466.80

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Solution

The fourth proportional to 393,144.60, 589,716.90 and 168,466.80 is: 252,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,144.60 : 589,716.90 = 168,466.80 : x
  2. Step 2: Convert to fraction form
    393,144.60/589,716.90 = 168,466.80/x
  3. Step 3: Cross multiply
    393,144.60x = 589,716.90 × 168,466.80
  4. Step 4: Simplify right side
    393,144.60x = 99,347,719,048.92
  5. Step 5: Solve for x
    x = 99,347,719,048.92/393,144.60
  6. Step 6: Final answer
    x = 252,700.20

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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.