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Finding the Fourth Proportional to 199,549.78, 275,379.51 and 108,907.66

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Solution

The fourth proportional to 199,549.78, 275,379.51 and 108,907.66 is: 150,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,549.78 : 275,379.51 = 108,907.66 : x
  2. Step 2: Convert to fraction form
    199,549.78/275,379.51 = 108,907.66/x
  3. Step 3: Cross multiply
    199,549.78x = 275,379.51 × 108,907.66
  4. Step 4: Simplify right side
    199,549.78x = 29,990,938,046.05
  5. Step 5: Solve for x
    x = 29,990,938,046.05/199,549.78
  6. Step 6: Final answer
    x = 150,293.01

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1.5x scale

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.