Finding the Fourth Proportional to 211,979.04, 292,551.42 and 121,316.88
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Solution
The fourth proportional to 211,979.04, 292,551.42 and 121,316.88 is: 167,428.94
Step by Step Solution
- Step 1: Write the proportion equation
211,979.04 : 292,551.42 = 121,316.88 : x - Step 2: Convert to fraction form
211,979.04/292,551.42 = 121,316.88/x - Step 3: Cross multiply
211,979.04x = 292,551.42 × 121,316.88 - Step 4: Simplify right side
211,979.04x = 35,491,425,513.97 - Step 5: Solve for x
x = 35,491,425,513.97/211,979.04 - Step 6: Final answer
x = 167,428.94
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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.