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Finding the Fourth Proportional to 247,751.11, 371,682.03 and 79,281.55

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Solution

The fourth proportional to 247,751.11, 371,682.03 and 79,281.55 is: 118,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,751.11 : 371,682.03 = 79,281.55 : x
  2. Step 2: Convert to fraction form
    247,751.11/371,682.03 = 79,281.55/x
  3. Step 3: Cross multiply
    247,751.11x = 371,682.03 × 79,281.55
  4. Step 4: Simplify right side
    247,751.11x = 29,467,528,207.45
  5. Step 5: Solve for x
    x = 29,467,528,207.45/247,751.11
  6. Step 6: Final answer
    x = 118,940.05

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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.