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Finding the Fourth Proportional to 400,497.39, 600,982.40 and 147,956.60

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Solution

The fourth proportional to 400,497.39, 600,982.40 and 147,956.60 is: 222,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,497.39 : 600,982.40 = 147,956.60 : x
  2. Step 2: Convert to fraction form
    400,497.39/600,982.40 = 147,956.60/x
  3. Step 3: Cross multiply
    400,497.39x = 600,982.40 × 147,956.60
  4. Step 4: Simplify right side
    400,497.39x = 88,919,314,436.19
  5. Step 5: Solve for x
    x = 88,919,314,436.19/400,497.39
  6. Step 6: Final answer
    x = 222,022.21

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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.