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Finding the Fourth Proportional to 384,540.85, 576,812.70 and 118,299.52

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Solution

The fourth proportional to 384,540.85, 576,812.70 and 118,299.52 is: 177,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,540.85 : 576,812.70 = 118,299.52 : x
  2. Step 2: Convert to fraction form
    384,540.85/576,812.70 = 118,299.52/x
  3. Step 3: Cross multiply
    384,540.85x = 576,812.70 × 118,299.52
  4. Step 4: Simplify right side
    384,540.85x = 68,236,665,539.90
  5. Step 5: Solve for x
    x = 68,236,665,539.90/384,540.85
  6. Step 6: Final answer
    x = 177,449.72

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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.