Finding the Fourth Proportional to 298,398.36, 411,794.97 and 162,436.20
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Solution
The fourth proportional to 298,398.36, 411,794.97 and 162,436.20 is: 224,164.80
Step by Step Solution
- Step 1: Write the proportion equation
298,398.36 : 411,794.97 = 162,436.20 : x - Step 2: Convert to fraction form
298,398.36/411,794.97 = 162,436.20/x - Step 3: Cross multiply
298,398.36x = 411,794.97 × 162,436.20 - Step 4: Simplify right side
298,398.36x = 66,890,410,105.91 - Step 5: Solve for x
x = 66,890,410,105.91/298,398.36 - Step 6: Final answer
x = 224,164.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.