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Finding the Fourth Proportional to 578.26, 867.45 and 193.51

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Solution

The fourth proportional to 578.26, 867.45 and 193.51 is: 290.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    578.26 : 867.45 = 193.51 : x
  2. Step 2: Convert to fraction form
    578.26/867.45 = 193.51/x
  3. Step 3: Cross multiply
    578.26x = 867.45 × 193.51
  4. Step 4: Simplify right side
    578.26x = 167,860.25
  5. Step 5: Solve for x
    x = 167,860.25/578.26
  6. Step 6: Final answer
    x = 290.29

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Double scale
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1.5x scale

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.