Finding the Fourth Proportional to 223,343.21, 308,212.61 and 121,366.74
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Solution
The fourth proportional to 223,343.21, 308,212.61 and 121,366.74 is: 167,485.54
Step by Step Solution
- Step 1: Write the proportion equation
223,343.21 : 308,212.61 = 121,366.74 : x - Step 2: Convert to fraction form
223,343.21/308,212.61 = 121,366.74/x - Step 3: Cross multiply
223,343.21x = 308,212.61 × 121,366.74 - Step 4: Simplify right side
223,343.21x = 37,406,758,161.53 - Step 5: Solve for x
x = 37,406,758,161.53/223,343.21 - Step 6: Final answer
x = 167,485.54
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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.