Finding the Fourth Proportional to 309,107.36, 426,605.99 and 188,266.19
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Solution
The fourth proportional to 309,107.36, 426,605.99 and 188,266.19 is: 259,830.38
Step by Step Solution
- Step 1: Write the proportion equation
309,107.36 : 426,605.99 = 188,266.19 : x - Step 2: Convert to fraction form
309,107.36/426,605.99 = 188,266.19/x - Step 3: Cross multiply
309,107.36x = 426,605.99 × 188,266.19 - Step 4: Simplify right side
309,107.36x = 80,315,481,294.12 - Step 5: Solve for x
x = 80,315,481,294.12/309,107.36 - Step 6: Final answer
x = 259,830.38
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1.5x scale
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.