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Finding the Fourth Proportional to 351,720.49, 485,372.63 and 190,575.56

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Solution

The fourth proportional to 351,720.49, 485,372.63 and 190,575.56 is: 262,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,720.49 : 485,372.63 = 190,575.56 : x
  2. Step 2: Convert to fraction form
    351,720.49/485,372.63 = 190,575.56/x
  3. Step 3: Cross multiply
    351,720.49x = 485,372.63 × 190,575.56
  4. Step 4: Simplify right side
    351,720.49x = 92,500,157,391.18
  5. Step 5: Solve for x
    x = 92,500,157,391.18/351,720.49
  6. Step 6: Final answer
    x = 262,993.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.