Finding the Fourth Proportional to 221,349.61, 305,431.64 and 125,845.75
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Solution
The fourth proportional to 221,349.61, 305,431.64 and 125,845.75 is: 173,649.61
Step by Step Solution
- Step 1: Write the proportion equation
221,349.61 : 305,431.64 = 125,845.75 : x - Step 2: Convert to fraction form
221,349.61/305,431.64 = 125,845.75/x - Step 3: Cross multiply
221,349.61x = 305,431.64 × 125,845.75 - Step 4: Simplify right side
221,349.61x = 38,437,272,596.99 - Step 5: Solve for x
x = 38,437,272,596.99/221,349.61 - Step 6: Final answer
x = 173,649.61
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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.