Finding the Fourth Proportional to 438,198.97, 657,371.10 and 153,815.73
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Solution
The fourth proportional to 438,198.97, 657,371.10 and 153,815.73 is: 230,749.09
Step by Step Solution
- Step 1: Write the proportion equation
438,198.97 : 657,371.10 = 153,815.73 : x - Step 2: Convert to fraction form
438,198.97/657,371.10 = 153,815.73/x - Step 3: Cross multiply
438,198.97x = 657,371.10 × 153,815.73 - Step 4: Simplify right side
438,198.97x = 101,114,015,627.40 - Step 5: Solve for x
x = 101,114,015,627.40/438,198.97 - Step 6: Final answer
x = 230,749.09
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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.