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Finding the Fourth Proportional to 383,138.30, 573,723.30 and 303,750.20

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Solution

The fourth proportional to 383,138.30, 573,723.30 and 303,750.20 is: 454,845.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,138.30 : 573,723.30 = 303,750.20 : x
  2. Step 2: Convert to fraction form
    383,138.30/573,723.30 = 303,750.20/x
  3. Step 3: Cross multiply
    383,138.30x = 573,723.30 × 303,750.20
  4. Step 4: Simplify right side
    383,138.30x = 174,268,567,119.66
  5. Step 5: Solve for x
    x = 174,268,567,119.66/383,138.30
  6. Step 6: Final answer
    x = 454,845.07

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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.