Finding the Fourth Proportional to 221,347.23, 305,428.37 and 125,843.37
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Solution
The fourth proportional to 221,347.23, 305,428.37 and 125,843.37 is: 173,646.33
Step by Step Solution
- Step 1: Write the proportion equation
221,347.23 : 305,428.37 = 125,843.37 : x - Step 2: Convert to fraction form
221,347.23/305,428.37 = 125,843.37/x - Step 3: Cross multiply
221,347.23x = 305,428.37 × 125,843.37 - Step 4: Simplify right side
221,347.23x = 38,436,134,745.19 - Step 5: Solve for x
x = 38,436,134,745.19/221,347.23 - Step 6: Final answer
x = 173,646.33
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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.