Finding the Fourth Proportional to 194,866.16, 268,902.60 and 109,971.68
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Solution
The fourth proportional to 194,866.16, 268,902.60 and 109,971.68 is: 151,753.75
Step by Step Solution
- Step 1: Write the proportion equation
194,866.16 : 268,902.60 = 109,971.68 : x - Step 2: Convert to fraction form
194,866.16/268,902.60 = 109,971.68/x - Step 3: Cross multiply
194,866.16x = 268,902.60 × 109,971.68 - Step 4: Simplify right side
194,866.16x = 29,571,670,678.37 - Step 5: Solve for x
x = 29,571,670,678.37/194,866.16 - Step 6: Final answer
x = 151,753.75
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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.