Finding the Fourth Proportional to 259,866.75, 358,616.12 and 140,634.75
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Solution
The fourth proportional to 259,866.75, 358,616.12 and 140,634.75 is: 194,075.96
Step by Step Solution
- Step 1: Write the proportion equation
259,866.75 : 358,616.12 = 140,634.75 : x - Step 2: Convert to fraction form
259,866.75/358,616.12 = 140,634.75/x - Step 3: Cross multiply
259,866.75x = 358,616.12 × 140,634.75 - Step 4: Simplify right side
259,866.75x = 50,433,888,382.17 - Step 5: Solve for x
x = 50,433,888,382.17/259,866.75 - Step 6: Final answer
x = 194,075.96
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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.