Finding the Fourth Proportional to 274,326.81, 411,448.63 and 74,662.75
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Solution
The fourth proportional to 274,326.81, 411,448.63 and 74,662.75 is: 111,982.81
Step by Step Solution
- Step 1: Write the proportion equation
274,326.81 : 411,448.63 = 74,662.75 : x - Step 2: Convert to fraction form
274,326.81/411,448.63 = 74,662.75/x - Step 3: Cross multiply
274,326.81x = 411,448.63 × 74,662.75 - Step 4: Simplify right side
274,326.81x = 30,719,886,199.53 - Step 5: Solve for x
x = 30,719,886,199.53/274,326.81 - Step 6: Final answer
x = 111,982.81
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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.