Finding the Fourth Proportional to 274,322.13, 411,441.63 and 74,658.08
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Solution
The fourth proportional to 274,322.13, 411,441.63 and 74,658.08 is: 111,975.81
Step by Step Solution
- Step 1: Write the proportion equation
274,322.13 : 411,441.63 = 74,658.08 : x - Step 2: Convert to fraction form
274,322.13/411,441.63 = 74,658.08/x - Step 3: Cross multiply
274,322.13x = 411,441.63 × 74,658.08 - Step 4: Simplify right side
274,322.13x = 30,717,441,719.33 - Step 5: Solve for x
x = 30,717,441,719.33/274,322.13 - Step 6: Final answer
x = 111,975.81
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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.