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Finding the Fourth Proportional to 605.03, 907.07 and 258.41

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Solution

The fourth proportional to 605.03, 907.07 and 258.41 is: 387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.03 : 907.07 = 258.41 : x
  2. Step 2: Convert to fraction form
    605.03/907.07 = 258.41/x
  3. Step 3: Cross multiply
    605.03x = 907.07 × 258.41
  4. Step 4: Simplify right side
    605.03x = 234,396.93
  5. Step 5: Solve for x
    x = 234,396.93/605.03
  6. Step 6: Final answer
    x = 387.42

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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.