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Finding the Fourth Proportional to 383,610.80, 576,072.30 and 251,078.60

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Solution

The fourth proportional to 383,610.80, 576,072.30 and 251,078.60 is: 377,047.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,610.80 : 576,072.30 = 251,078.60 : x
  2. Step 2: Convert to fraction form
    383,610.80/576,072.30 = 251,078.60/x
  3. Step 3: Cross multiply
    383,610.80x = 576,072.30 × 251,078.60
  4. Step 4: Simplify right side
    383,610.80x = 144,639,426,582.78
  5. Step 5: Solve for x
    x = 144,639,426,582.78/383,610.80
  6. Step 6: Final answer
    x = 377,047.33

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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.