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Finding the Fourth Proportional to 275,589.97, 380,301.31 and 153,090.29

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Solution

The fourth proportional to 275,589.97, 380,301.31 and 153,090.29 is: 211,257.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,589.97 : 380,301.31 = 153,090.29 : x
  2. Step 2: Convert to fraction form
    275,589.97/380,301.31 = 153,090.29/x
  3. Step 3: Cross multiply
    275,589.97x = 380,301.31 × 153,090.29
  4. Step 4: Simplify right side
    275,589.97x = 58,220,436,594.45
  5. Step 5: Solve for x
    x = 58,220,436,594.45/275,589.97
  6. Step 6: Final answer
    x = 211,257.46

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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.