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Finding the Fourth Proportional to 556.13, 834.26 and 231.32

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Solution

The fourth proportional to 556.13, 834.26 and 231.32 is: 347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.13 : 834.26 = 231.32 : x
  2. Step 2: Convert to fraction form
    556.13/834.26 = 231.32/x
  3. Step 3: Cross multiply
    556.13x = 834.26 × 231.32
  4. Step 4: Simplify right side
    556.13x = 192,975.70
  5. Step 5: Solve for x
    x = 192,975.70/556.13
  6. Step 6: Final answer
    x = 347.00

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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.