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Finding the Fourth Proportional to 265.08, 398.44 and 193.26

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Solution

The fourth proportional to 265.08, 398.44 and 193.26 is: 290.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.08 : 398.44 = 193.26 : x
  2. Step 2: Convert to fraction form
    265.08/398.44 = 193.26/x
  3. Step 3: Cross multiply
    265.08x = 398.44 × 193.26
  4. Step 4: Simplify right side
    265.08x = 77,002.51
  5. Step 5: Solve for x
    x = 77,002.51/265.08
  6. Step 6: Final answer
    x = 290.49

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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.