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Finding the Fourth Proportional to 351,496.40, 485,064.06 and 190,351.40

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Solution

The fourth proportional to 351,496.40, 485,064.06 and 190,351.40 is: 262,684.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,496.40 : 485,064.06 = 190,351.40 : x
  2. Step 2: Convert to fraction form
    351,496.40/485,064.06 = 190,351.40/x
  3. Step 3: Cross multiply
    351,496.40x = 485,064.06 × 190,351.40
  4. Step 4: Simplify right side
    351,496.40x = 92,332,622,910.68
  5. Step 5: Solve for x
    x = 92,332,622,910.68/351,496.40
  6. Step 6: Final answer
    x = 262,684.41

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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.