Finding the Fourth Proportional to 207,456.93, 286,354.04 and 121,436.05
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Solution
The fourth proportional to 207,456.93, 286,354.04 and 121,436.05 is: 167,618.91
Step by Step Solution
- Step 1: Write the proportion equation
207,456.93 : 286,354.04 = 121,436.05 : x - Step 2: Convert to fraction form
207,456.93/286,354.04 = 121,436.05/x - Step 3: Cross multiply
207,456.93x = 286,354.04 × 121,436.05 - Step 4: Simplify right side
207,456.93x = 34,773,703,519.14 - Step 5: Solve for x
x = 34,773,703,519.14/207,456.93 - Step 6: Final answer
x = 167,618.91
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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.