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Finding the Fourth Proportional to 247,644.86, 371,520.63 and 76,863.02

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Solution

The fourth proportional to 247,644.86, 371,520.63 and 76,863.02 is: 115,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,644.86 : 371,520.63 = 76,863.02 : x
  2. Step 2: Convert to fraction form
    247,644.86/371,520.63 = 76,863.02/x
  3. Step 3: Cross multiply
    247,644.86x = 371,520.63 × 76,863.02
  4. Step 4: Simplify right side
    247,644.86x = 28,556,195,756.50
  5. Step 5: Solve for x
    x = 28,556,195,756.50/247,644.86
  6. Step 6: Final answer
    x = 115,311.08

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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.