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Finding the Fourth Proportional to 556.12, 834.32 and 231.52

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Solution

The fourth proportional to 556.12, 834.32 and 231.52 is: 347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.12 : 834.32 = 231.52 : x
  2. Step 2: Convert to fraction form
    556.12/834.32 = 231.52/x
  3. Step 3: Cross multiply
    556.12x = 834.32 × 231.52
  4. Step 4: Simplify right side
    556.12x = 193,161.77
  5. Step 5: Solve for x
    x = 193,161.77/556.12
  6. Step 6: Final answer
    x = 347.34

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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.