Finding the Fourth Proportional to 223,104.65, 307,882.72 and 121,128.09
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Solution
The fourth proportional to 223,104.65, 307,882.72 and 121,128.09 is: 167,155.84
Step by Step Solution
- Step 1: Write the proportion equation
223,104.65 : 307,882.72 = 121,128.09 : x - Step 2: Convert to fraction form
223,104.65/307,882.72 = 121,128.09/x - Step 3: Cross multiply
223,104.65x = 307,882.72 × 121,128.09 - Step 4: Simplify right side
223,104.65x = 37,293,245,514.78 - Step 5: Solve for x
x = 37,293,245,514.78/223,104.65 - Step 6: Final answer
x = 167,155.84
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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.