Finding the Fourth Proportional to 221,349.48, 305,431.47 and 125,845.62
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Solution
The fourth proportional to 221,349.48, 305,431.47 and 125,845.62 is: 173,649.44
Step by Step Solution
- Step 1: Write the proportion equation
221,349.48 : 305,431.47 = 125,845.62 : x - Step 2: Convert to fraction form
221,349.48/305,431.47 = 125,845.62/x - Step 3: Cross multiply
221,349.48x = 305,431.47 × 125,845.62 - Step 4: Simplify right side
221,349.48x = 38,437,212,709.66 - Step 5: Solve for x
x = 38,437,212,709.66/221,349.48 - Step 6: Final answer
x = 173,649.44
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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.