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Finding the Fourth Proportional to 555.26, 833.49 and 494.51

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Solution

The fourth proportional to 555.26, 833.49 and 494.51 is: 742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.26 : 833.49 = 494.51 : x
  2. Step 2: Convert to fraction form
    555.26/833.49 = 494.51/x
  3. Step 3: Cross multiply
    555.26x = 833.49 × 494.51
  4. Step 4: Simplify right side
    555.26x = 412,164.97
  5. Step 5: Solve for x
    x = 412,164.97/555.26
  6. Step 6: Final answer
    x = 742.30

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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.