Finding the Fourth Proportional to 223,213.68, 308,037.12 and 121,241.13
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Solution
The fourth proportional to 223,213.68, 308,037.12 and 121,241.13 is: 167,313.98
Step by Step Solution
- Step 1: Write the proportion equation
223,213.68 : 308,037.12 = 121,241.13 : x - Step 2: Convert to fraction form
223,213.68/308,037.12 = 121,241.13/x - Step 3: Cross multiply
223,213.68x = 308,037.12 × 121,241.13 - Step 4: Simplify right side
223,213.68x = 37,346,768,510.75 - Step 5: Solve for x
x = 37,346,768,510.75/223,213.68 - Step 6: Final answer
x = 167,313.98
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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.