Finding the Fourth Proportional to 221,248.89, 305,349.66 and 125,769.96
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Solution
The fourth proportional to 221,248.89, 305,349.66 and 125,769.96 is: 173,577.43
Step by Step Solution
- Step 1: Write the proportion equation
221,248.89 : 305,349.66 = 125,769.96 : x - Step 2: Convert to fraction form
221,248.89/305,349.66 = 125,769.96/x - Step 3: Cross multiply
221,248.89x = 305,349.66 × 125,769.96 - Step 4: Simplify right side
221,248.89x = 38,403,814,524.21 - Step 5: Solve for x
x = 38,403,814,524.21/221,248.89 - Step 6: Final answer
x = 173,577.43
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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.