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Finding the Fourth Proportional to 351,493.80, 485,055.42 and 190,347.54

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Solution

The fourth proportional to 351,493.80, 485,055.42 and 190,347.54 is: 262,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,493.80 : 485,055.42 = 190,347.54 : x
  2. Step 2: Convert to fraction form
    351,493.80/485,055.42 = 190,347.54/x
  3. Step 3: Cross multiply
    351,493.80x = 485,055.42 × 190,347.54
  4. Step 4: Simplify right side
    351,493.80x = 92,329,105,960.67
  5. Step 5: Solve for x
    x = 92,329,105,960.67/351,493.80
  6. Step 6: Final answer
    x = 262,676.34

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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.