Finding the Fourth Proportional to 223,756.14, 308,786.88 and 121,785.63
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Solution
The fourth proportional to 223,756.14, 308,786.88 and 121,785.63 is: 168,066.02
Step by Step Solution
- Step 1: Write the proportion equation
223,756.14 : 308,786.88 = 121,785.63 : x - Step 2: Convert to fraction form
223,756.14/308,786.88 = 121,785.63/x - Step 3: Cross multiply
223,756.14x = 308,786.88 × 121,785.63 - Step 4: Simplify right side
223,756.14x = 37,605,804,716.53 - Step 5: Solve for x
x = 37,605,804,716.53/223,756.14 - Step 6: Final answer
x = 168,066.02
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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.