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Finding the Fourth Proportional to 605.37, 908.05 and 172.51

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Solution

The fourth proportional to 605.37, 908.05 and 172.51 is: 258.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.37 : 908.05 = 172.51 : x
  2. Step 2: Convert to fraction form
    605.37/908.05 = 172.51/x
  3. Step 3: Cross multiply
    605.37x = 908.05 × 172.51
  4. Step 4: Simplify right side
    605.37x = 156,647.71
  5. Step 5: Solve for x
    x = 156,647.71/605.37
  6. Step 6: Final answer
    x = 258.77

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Similar ratio
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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.