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Finding the Fourth Proportional to 403,394.40, 605,091.60 and 107,906.40

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Solution

The fourth proportional to 403,394.40, 605,091.60 and 107,906.40 is: 161,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,394.40 : 605,091.60 = 107,906.40 : x
  2. Step 2: Convert to fraction form
    403,394.40/605,091.60 = 107,906.40/x
  3. Step 3: Cross multiply
    403,394.40x = 605,091.60 × 107,906.40
  4. Step 4: Simplify right side
    403,394.40x = 65,293,256,226.24
  5. Step 5: Solve for x
    x = 65,293,256,226.24/403,394.40
  6. Step 6: Final answer
    x = 161,859.60

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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.