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Finding the Fourth Proportional to 258.93, 390.62 and 246.11

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Solution

The fourth proportional to 258.93, 390.62 and 246.11 is: 371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    258.93 : 390.62 = 246.11 : x
  2. Step 2: Convert to fraction form
    258.93/390.62 = 246.11/x
  3. Step 3: Cross multiply
    258.93x = 390.62 × 246.11
  4. Step 4: Simplify right side
    258.93x = 96,134.15
  5. Step 5: Solve for x
    x = 96,134.15/258.93
  6. Step 6: Final answer
    x = 371.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.