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Finding the Fourth Proportional to 556.69, 835.03 and 191.48

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Solution

The fourth proportional to 556.69, 835.03 and 191.48 is: 287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.69 : 835.03 = 191.48 : x
  2. Step 2: Convert to fraction form
    556.69/835.03 = 191.48/x
  3. Step 3: Cross multiply
    556.69x = 835.03 × 191.48
  4. Step 4: Simplify right side
    556.69x = 159,891.54
  5. Step 5: Solve for x
    x = 159,891.54/556.69
  6. Step 6: Final answer
    x = 287.22

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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.