Finding the Fourth Proportional to 403,383.80, 605,075.70 and 193,431.80
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Solution
The fourth proportional to 403,383.80, 605,075.70 and 193,431.80 is: 290,147.70
Step by Step Solution
- Step 1: Write the proportion equation
403,383.80 : 605,075.70 = 193,431.80 : x - Step 2: Convert to fraction form
403,383.80/605,075.70 = 193,431.80/x - Step 3: Cross multiply
403,383.80x = 605,075.70 × 193,431.80 - Step 4: Simplify right side
403,383.80x = 117,040,881,787.26 - Step 5: Solve for x
x = 117,040,881,787.26/403,383.80 - Step 6: Final answer
x = 290,147.70
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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.