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Finding the Fourth Proportional to 556.85, 835.33 and 191.59

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Solution

The fourth proportional to 556.85, 835.33 and 191.59 is: 287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.85 : 835.33 = 191.59 : x
  2. Step 2: Convert to fraction form
    556.85/835.33 = 191.59/x
  3. Step 3: Cross multiply
    556.85x = 835.33 × 191.59
  4. Step 4: Simplify right side
    556.85x = 160,040.87
  5. Step 5: Solve for x
    x = 160,040.87/556.85
  6. Step 6: Final answer
    x = 287.40

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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.