Finding the Fourth Proportional to 221,954.99, 306,227.39 and 131,342.11
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Solution
The fourth proportional to 221,954.99, 306,227.39 and 131,342.11 is: 181,210.39
Step by Step Solution
- Step 1: Write the proportion equation
221,954.99 : 306,227.39 = 131,342.11 : x - Step 2: Convert to fraction form
221,954.99/306,227.39 = 131,342.11/x - Step 3: Cross multiply
221,954.99x = 306,227.39 × 131,342.11 - Step 4: Simplify right side
221,954.99x = 40,220,550,120.11 - Step 5: Solve for x
x = 40,220,550,120.11/221,954.99 - Step 6: Final answer
x = 181,210.39
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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.