Finding the Fourth Proportional to 144,272.81, 217,393.99 and 118,553.69
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Solution
The fourth proportional to 144,272.81, 217,393.99 and 118,553.69 is: 178,639.75
Step by Step Solution
- Step 1: Write the proportion equation
144,272.81 : 217,393.99 = 118,553.69 : x - Step 2: Convert to fraction form
144,272.81/217,393.99 = 118,553.69/x - Step 3: Cross multiply
144,272.81x = 217,393.99 × 118,553.69 - Step 4: Simplify right side
144,272.81x = 25,772,859,105.55 - Step 5: Solve for x
x = 25,772,859,105.55/144,272.81 - Step 6: Final answer
x = 178,639.75
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.