Finding the Fourth Proportional to 183,419.80, 275,129.70 and 141,947.80
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Solution
The fourth proportional to 183,419.80, 275,129.70 and 141,947.80 is: 212,921.70
Step by Step Solution
- Step 1: Write the proportion equation
183,419.80 : 275,129.70 = 141,947.80 : x - Step 2: Convert to fraction form
183,419.80/275,129.70 = 141,947.80/x - Step 3: Cross multiply
183,419.80x = 275,129.70 × 141,947.80 - Step 4: Simplify right side
183,419.80x = 39,054,055,629.66 - Step 5: Solve for x
x = 39,054,055,629.66/183,419.80 - Step 6: Final answer
x = 212,921.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.