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Finding the Fourth Proportional to 556.89, 835.39 and 186.68

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Solution

The fourth proportional to 556.89, 835.39 and 186.68 is: 280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.89 : 835.39 = 186.68 : x
  2. Step 2: Convert to fraction form
    556.89/835.39 = 186.68/x
  3. Step 3: Cross multiply
    556.89x = 835.39 × 186.68
  4. Step 4: Simplify right side
    556.89x = 155,949.67
  5. Step 5: Solve for x
    x = 155,949.67/556.89
  6. Step 6: Final answer
    x = 280.04

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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.