Finding the Fourth Proportional to 263,727.70, 363,945.15 and 142,868.68
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Solution
The fourth proportional to 263,727.70, 363,945.15 and 142,868.68 is: 197,159.28
Step by Step Solution
- Step 1: Write the proportion equation
263,727.70 : 363,945.15 = 142,868.68 : x - Step 2: Convert to fraction form
263,727.70/363,945.15 = 142,868.68/x - Step 3: Cross multiply
263,727.70x = 363,945.15 × 142,868.68 - Step 4: Simplify right side
263,727.70x = 51,996,362,263.04 - Step 5: Solve for x
x = 51,996,362,263.04/263,727.70 - Step 6: Final answer
x = 197,159.28
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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.