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Finding the Fourth Proportional to 275,593.07, 380,306.18 and 154,732.16

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Solution

The fourth proportional to 275,593.07, 380,306.18 and 154,732.16 is: 213,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,593.07 : 380,306.18 = 154,732.16 : x
  2. Step 2: Convert to fraction form
    275,593.07/380,306.18 = 154,732.16/x
  3. Step 3: Cross multiply
    275,593.07x = 380,306.18 × 154,732.16
  4. Step 4: Simplify right side
    275,593.07x = 58,845,594,017.56
  5. Step 5: Solve for x
    x = 58,845,594,017.56/275,593.07
  6. Step 6: Final answer
    x = 213,523.49

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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.