Finding the Fourth Proportional to 221,763.42, 306,034.48 and 121,163.58
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Solution
The fourth proportional to 221,763.42, 306,034.48 and 121,163.58 is: 167,206.27
Step by Step Solution
- Step 1: Write the proportion equation
221,763.42 : 306,034.48 = 121,163.58 : x - Step 2: Convert to fraction form
221,763.42/306,034.48 = 121,163.58/x - Step 3: Cross multiply
221,763.42x = 306,034.48 × 121,163.58 - Step 4: Simplify right side
221,763.42x = 37,080,233,200.24 - Step 5: Solve for x
x = 37,080,233,200.24/221,763.42 - Step 6: Final answer
x = 167,206.27
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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.