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Finding the Fourth Proportional to 403,150.60, 605,100.08 and 203,611.11

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Solution

The fourth proportional to 403,150.60, 605,100.08 and 203,611.11 is: 305,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,150.60 : 605,100.08 = 203,611.11 : x
  2. Step 2: Convert to fraction form
    403,150.60/605,100.08 = 203,611.11/x
  3. Step 3: Cross multiply
    403,150.60x = 605,100.08 × 203,611.11
  4. Step 4: Simplify right side
    403,150.60x = 123,205,098,949.89
  5. Step 5: Solve for x
    x = 123,205,098,949.89/403,150.60
  6. Step 6: Final answer
    x = 305,605.64

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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.