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Finding the Fourth Proportional to 275,578.52, 380,268.99 and 154,733.00

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Solution

The fourth proportional to 275,578.52, 380,268.99 and 154,733.00 is: 213,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,578.52 : 380,268.99 = 154,733.00 : x
  2. Step 2: Convert to fraction form
    275,578.52/380,268.99 = 154,733.00/x
  3. Step 3: Cross multiply
    275,578.52x = 380,268.99 × 154,733.00
  4. Step 4: Simplify right side
    275,578.52x = 58,840,159,728.33
  5. Step 5: Solve for x
    x = 58,840,159,728.33/275,578.52
  6. Step 6: Final answer
    x = 213,515.05

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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.