Finding the Fourth Proportional to 221,997.47, 306,350.29 and 121,393.31
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Solution
The fourth proportional to 221,997.47, 306,350.29 and 121,393.31 is: 167,519.37
Step by Step Solution
- Step 1: Write the proportion equation
221,997.47 : 306,350.29 = 121,393.31 : x - Step 2: Convert to fraction form
221,997.47/306,350.29 = 121,393.31/x - Step 3: Cross multiply
221,997.47x = 306,350.29 × 121,393.31 - Step 4: Simplify right side
221,997.47x = 37,188,876,184.95 - Step 5: Solve for x
x = 37,188,876,184.95/221,997.47 - Step 6: Final answer
x = 167,519.37
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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.