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Finding the Fourth Proportional to 441.57, 662.07 and 258.87

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Solution

The fourth proportional to 441.57, 662.07 and 258.87 is: 388.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.57 : 662.07 = 258.87 : x
  2. Step 2: Convert to fraction form
    441.57/662.07 = 258.87/x
  3. Step 3: Cross multiply
    441.57x = 662.07 × 258.87
  4. Step 4: Simplify right side
    441.57x = 171,390.06
  5. Step 5: Solve for x
    x = 171,390.06/441.57
  6. Step 6: Final answer
    x = 388.14

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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.