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Finding the Fourth Proportional to 383,561.60, 575,428.80 and 225,708.80

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Solution

The fourth proportional to 383,561.60, 575,428.80 and 225,708.80 is: 338,614.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,561.60 : 575,428.80 = 225,708.80 : x
  2. Step 2: Convert to fraction form
    383,561.60/575,428.80 = 225,708.80/x
  3. Step 3: Cross multiply
    383,561.60x = 575,428.80 × 225,708.80
  4. Step 4: Simplify right side
    383,561.60x = 129,879,343,933.44
  5. Step 5: Solve for x
    x = 129,879,343,933.44/383,561.60
  6. Step 6: Final answer
    x = 338,614.04

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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.