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Finding the Fourth Proportional to 275,637.41, 380,418.96 and 154,786.96

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Solution

The fourth proportional to 275,637.41, 380,418.96 and 154,786.96 is: 213,628.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,637.41 : 380,418.96 = 154,786.96 : x
  2. Step 2: Convert to fraction form
    275,637.41/380,418.96 = 154,786.96/x
  3. Step 3: Cross multiply
    275,637.41x = 380,418.96 × 154,786.96
  4. Step 4: Simplify right side
    275,637.41x = 58,883,894,344.76
  5. Step 5: Solve for x
    x = 58,883,894,344.76/275,637.41
  6. Step 6: Final answer
    x = 213,628.09

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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.