Finding the Fourth Proportional to 221,662.13, 305,895.68 and 126,174.96
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Solution
The fourth proportional to 221,662.13, 305,895.68 and 126,174.96 is: 174,122.55
Step by Step Solution
- Step 1: Write the proportion equation
221,662.13 : 305,895.68 = 126,174.96 : x - Step 2: Convert to fraction form
221,662.13/305,895.68 = 126,174.96/x - Step 3: Cross multiply
221,662.13x = 305,895.68 × 126,174.96 - Step 4: Simplify right side
221,662.13x = 38,596,374,557.30 - Step 5: Solve for x
x = 38,596,374,557.30/221,662.13 - Step 6: Final answer
x = 174,122.55
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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.