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Finding the Fourth Proportional to 384,148.80, 576,879.30 and 251,616.60

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Solution

The fourth proportional to 384,148.80, 576,879.30 and 251,616.60 is: 377,854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,148.80 : 576,879.30 = 251,616.60 : x
  2. Step 2: Convert to fraction form
    384,148.80/576,879.30 = 251,616.60/x
  3. Step 3: Cross multiply
    384,148.80x = 576,879.30 × 251,616.60
  4. Step 4: Simplify right side
    384,148.80x = 145,152,408,076.38
  5. Step 5: Solve for x
    x = 145,152,408,076.38/384,148.80
  6. Step 6: Final answer
    x = 377,854.64

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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.