Finding the Fourth Proportional to 217,669.09, 326,629.68 and 91,298.08
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Solution
The fourth proportional to 217,669.09, 326,629.68 and 91,298.08 is: 136,999.99
Step by Step Solution
- Step 1: Write the proportion equation
217,669.09 : 326,629.68 = 91,298.08 : x - Step 2: Convert to fraction form
217,669.09/326,629.68 = 91,298.08/x - Step 3: Cross multiply
217,669.09x = 326,629.68 × 91,298.08 - Step 4: Simplify right side
217,669.09x = 29,820,662,655.01 - Step 5: Solve for x
x = 29,820,662,655.01/217,669.09 - Step 6: Final answer
x = 136,999.99
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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.