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Finding the Fourth Proportional to 351,636, 485,255.73 and 190,494.20

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Solution

The fourth proportional to 351,636, 485,255.73 and 190,494.20 is: 262,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,636 : 485,255.73 = 190,494.20 : x
  2. Step 2: Convert to fraction form
    351,636/485,255.73 = 190,494.20/x
  3. Step 3: Cross multiply
    351,636x = 485,255.73 × 190,494.20
  4. Step 4: Simplify right side
    351,636x = 92,438,399,655.49
  5. Step 5: Solve for x
    x = 92,438,399,655.49/351,636
  6. Step 6: Final answer
    x = 262,880.93

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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.