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Finding the Fourth Proportional to 351,495.25, 485,060.91 and 190,346.56

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Solution

The fourth proportional to 351,495.25, 485,060.91 and 190,346.56 is: 262,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,495.25 : 485,060.91 = 190,346.56 : x
  2. Step 2: Convert to fraction form
    351,495.25/485,060.91 = 190,346.56/x
  3. Step 3: Cross multiply
    351,495.25x = 485,060.91 × 190,346.56
  4. Step 4: Simplify right side
    351,495.25x = 92,329,673,682.52
  5. Step 5: Solve for x
    x = 92,329,673,682.52/351,495.25
  6. Step 6: Final answer
    x = 262,676.88

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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.