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Finding the Fourth Proportional to 627,645.60, 941,468.40 and 201,180.60

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Solution

The fourth proportional to 627,645.60, 941,468.40 and 201,180.60 is: 301,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,645.60 : 941,468.40 = 201,180.60 : x
  2. Step 2: Convert to fraction form
    627,645.60/941,468.40 = 201,180.60/x
  3. Step 3: Cross multiply
    627,645.60x = 941,468.40 × 201,180.60
  4. Step 4: Simplify right side
    627,645.60x = 189,405,177,593.04
  5. Step 5: Solve for x
    x = 189,405,177,593.04/627,645.60
  6. Step 6: Final answer
    x = 301,770.90

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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.