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Finding the Fourth Proportional to 270,401.89, 405,571.85 and 70,741.55

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Solution

The fourth proportional to 270,401.89, 405,571.85 and 70,741.55 is: 106,104.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,401.89 : 405,571.85 = 70,741.55 : x
  2. Step 2: Convert to fraction form
    270,401.89/405,571.85 = 70,741.55/x
  3. Step 3: Cross multiply
    270,401.89x = 405,571.85 × 70,741.55
  4. Step 4: Simplify right side
    270,401.89x = 28,690,781,305.37
  5. Step 5: Solve for x
    x = 28,690,781,305.37/270,401.89
  6. Step 6: Final answer
    x = 106,104.22

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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.