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Finding the Fourth Proportional to 605.05, 907.58 and 166.30

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Solution

The fourth proportional to 605.05, 907.58 and 166.30 is: 249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.05 : 907.58 = 166.30 : x
  2. Step 2: Convert to fraction form
    605.05/907.58 = 166.30/x
  3. Step 3: Cross multiply
    605.05x = 907.58 × 166.30
  4. Step 4: Simplify right side
    605.05x = 150,930.55
  5. Step 5: Solve for x
    x = 150,930.55/605.05
  6. Step 6: Final answer
    x = 249.45

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Double scale
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Similar ratio
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1.5x scale

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.