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Finding the Fourth Proportional to 605.04, 908.47 and 345.33

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Solution

The fourth proportional to 605.04, 908.47 and 345.33 is: 518.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.04 : 908.47 = 345.33 : x
  2. Step 2: Convert to fraction form
    605.04/908.47 = 345.33/x
  3. Step 3: Cross multiply
    605.04x = 908.47 × 345.33
  4. Step 4: Simplify right side
    605.04x = 313,720.43
  5. Step 5: Solve for x
    x = 313,720.43/605.04
  6. Step 6: Final answer
    x = 518.52

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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.