Finding the Fourth Proportional to 221,951.22, 306,293.97 and 121,349.22
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Solution
The fourth proportional to 221,951.22, 306,293.97 and 121,349.22 is: 167,462.63
Step by Step Solution
- Step 1: Write the proportion equation
221,951.22 : 306,293.97 = 121,349.22 : x - Step 2: Convert to fraction form
221,951.22/306,293.97 = 121,349.22/x - Step 3: Cross multiply
221,951.22x = 306,293.97 × 121,349.22 - Step 4: Simplify right side
221,951.22x = 37,168,534,350.20 - Step 5: Solve for x
x = 37,168,534,350.20/221,951.22 - Step 6: Final answer
x = 167,462.63
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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.