Finding the Fourth Proportional to 221,347.67, 331,824.25 and 81,073.49
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Solution
The fourth proportional to 221,347.67, 331,824.25 and 81,073.49 is: 121,537.99
Step by Step Solution
- Step 1: Write the proportion equation
221,347.67 : 331,824.25 = 81,073.49 : x - Step 2: Convert to fraction form
221,347.67/331,824.25 = 81,073.49/x - Step 3: Cross multiply
221,347.67x = 331,824.25 × 81,073.49 - Step 4: Simplify right side
221,347.67x = 26,902,150,014.13 - Step 5: Solve for x
x = 26,902,150,014.13/221,347.67 - Step 6: Final answer
x = 121,537.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.