Finding the Fourth Proportional to 223,138.88, 307,931.64 and 121,163.84
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Solution
The fourth proportional to 223,138.88, 307,931.64 and 121,163.84 is: 167,206.09
Step by Step Solution
- Step 1: Write the proportion equation
223,138.88 : 307,931.64 = 121,163.84 : x - Step 2: Convert to fraction form
223,138.88/307,931.64 = 121,163.84/x - Step 3: Cross multiply
223,138.88x = 307,931.64 × 121,163.84 - Step 4: Simplify right side
223,138.88x = 37,310,179,959.90 - Step 5: Solve for x
x = 37,310,179,959.90/223,138.88 - Step 6: Final answer
x = 167,206.09
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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.