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Finding the Fourth Proportional to 555.56, 833.49 and 190.45

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Solution

The fourth proportional to 555.56, 833.49 and 190.45 is: 285.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.56 : 833.49 = 190.45 : x
  2. Step 2: Convert to fraction form
    555.56/833.49 = 190.45/x
  3. Step 3: Cross multiply
    555.56x = 833.49 × 190.45
  4. Step 4: Simplify right side
    555.56x = 158,739.21
  5. Step 5: Solve for x
    x = 158,739.21/555.56
  6. Step 6: Final answer
    x = 285.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.