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Finding the Fourth Proportional to 384,690.48, 576,963.24 and 104,170.80

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Solution

The fourth proportional to 384,690.48, 576,963.24 and 104,170.80 is: 156,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,690.48 : 576,963.24 = 104,170.80 : x
  2. Step 2: Convert to fraction form
    384,690.48/576,963.24 = 104,170.80/x
  3. Step 3: Cross multiply
    384,690.48x = 576,963.24 × 104,170.80
  4. Step 4: Simplify right side
    384,690.48x = 60,102,722,281.39
  5. Step 5: Solve for x
    x = 60,102,722,281.39/384,690.48
  6. Step 6: Final answer
    x = 156,236.57

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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.