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Finding the Fourth Proportional to 494,408.19, 741,722.67 and 210,107.76

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Solution

The fourth proportional to 494,408.19, 741,722.67 and 210,107.76 is: 315,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,408.19 : 741,722.67 = 210,107.76 : x
  2. Step 2: Convert to fraction form
    494,408.19/741,722.67 = 210,107.76/x
  3. Step 3: Cross multiply
    494,408.19x = 741,722.67 × 210,107.76
  4. Step 4: Simplify right side
    494,408.19x = 155,841,688,734.92
  5. Step 5: Solve for x
    x = 155,841,688,734.92/494,408.19
  6. Step 6: Final answer
    x = 315,208.55

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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.