Finding the Fourth Proportional to 217,873.14, 326,707.63 and 91,486.41
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Solution
The fourth proportional to 217,873.14, 326,707.63 and 91,486.41 is: 137,186.75
Step by Step Solution
- Step 1: Write the proportion equation
217,873.14 : 326,707.63 = 91,486.41 : x - Step 2: Convert to fraction form
217,873.14/326,707.63 = 91,486.41/x - Step 3: Cross multiply
217,873.14x = 326,707.63 × 91,486.41 - Step 4: Simplify right side
217,873.14x = 29,889,308,188.31 - Step 5: Solve for x
x = 29,889,308,188.31/217,873.14 - Step 6: Final answer
x = 137,186.75
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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.