Finding the Fourth Proportional to 221,118.96, 305,144.26 and 125,625.80
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Solution
The fourth proportional to 221,118.96, 305,144.26 and 125,625.80 is: 173,363.66
Step by Step Solution
- Step 1: Write the proportion equation
221,118.96 : 305,144.26 = 125,625.80 : x - Step 2: Convert to fraction form
221,118.96/305,144.26 = 125,625.80/x - Step 3: Cross multiply
221,118.96x = 305,144.26 × 125,625.80 - Step 4: Simplify right side
221,118.96x = 38,333,991,777.91 - Step 5: Solve for x
x = 38,333,991,777.91/221,118.96 - Step 6: Final answer
x = 173,363.66
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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.