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Finding the Fourth Proportional to 627.59, 941.38 and 339.59

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Solution

The fourth proportional to 627.59, 941.38 and 339.59 is: 509.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.59 : 941.38 = 339.59 : x
  2. Step 2: Convert to fraction form
    627.59/941.38 = 339.59/x
  3. Step 3: Cross multiply
    627.59x = 941.38 × 339.59
  4. Step 4: Simplify right side
    627.59x = 319,677.68
  5. Step 5: Solve for x
    x = 319,677.68/627.59
  6. Step 6: Final answer
    x = 509.38

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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.