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Finding the Fourth Proportional to 555.28, 832.81 and 185.09

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Solution

The fourth proportional to 555.28, 832.81 and 185.09 is: 277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.28 : 832.81 = 185.09 : x
  2. Step 2: Convert to fraction form
    555.28/832.81 = 185.09/x
  3. Step 3: Cross multiply
    555.28x = 832.81 × 185.09
  4. Step 4: Simplify right side
    555.28x = 154,143.39
  5. Step 5: Solve for x
    x = 154,143.39/555.28
  6. Step 6: Final answer
    x = 277.60

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