Finding the Fourth Proportional to 221,945.82, 306,285.75 and 121,350.30
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Solution
The fourth proportional to 221,945.82, 306,285.75 and 121,350.30 is: 167,463.70
Step by Step Solution
- Step 1: Write the proportion equation
221,945.82 : 306,285.75 = 121,350.30 : x - Step 2: Convert to fraction form
221,945.82/306,285.75 = 121,350.30/x - Step 3: Cross multiply
221,945.82x = 306,285.75 × 121,350.30 - Step 4: Simplify right side
221,945.82x = 37,167,867,648.23 - Step 5: Solve for x
x = 37,167,867,648.23/221,945.82 - Step 6: Final answer
x = 167,463.70
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1.5x scale
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.