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Finding the Fourth Proportional to 208,401.97, 312,603.72 and 50,630.43

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Solution

The fourth proportional to 208,401.97, 312,603.72 and 50,630.43 is: 75,945.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,401.97 : 312,603.72 = 50,630.43 : x
  2. Step 2: Convert to fraction form
    208,401.97/312,603.72 = 50,630.43/x
  3. Step 3: Cross multiply
    208,401.97x = 312,603.72 × 50,630.43
  4. Step 4: Simplify right side
    208,401.97x = 15,827,260,763.20
  5. Step 5: Solve for x
    x = 15,827,260,763.20/208,401.97
  6. Step 6: Final answer
    x = 75,945.83

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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.