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Finding the Fourth Proportional to 258.03, 356.10 and 164.86

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Solution

The fourth proportional to 258.03, 356.10 and 164.86 is: 227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258.03 : 356.10 = 164.86 : x
  2. Step 2: Convert to fraction form
    258.03/356.10 = 164.86/x
  3. Step 3: Cross multiply
    258.03x = 356.10 × 164.86
  4. Step 4: Simplify right side
    258.03x = 58,706.65
  5. Step 5: Solve for x
    x = 58,706.65/258.03
  6. Step 6: Final answer
    x = 227.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.