Finding the Fourth Proportional to 287,959.97, 397,382.05 and 158,899.63
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Solution
The fourth proportional to 287,959.97, 397,382.05 and 158,899.63 is: 219,279.99
Step by Step Solution
- Step 1: Write the proportion equation
287,959.97 : 397,382.05 = 158,899.63 : x - Step 2: Convert to fraction form
287,959.97/397,382.05 = 158,899.63/x - Step 3: Cross multiply
287,959.97x = 397,382.05 × 158,899.63 - Step 4: Simplify right side
287,959.97x = 63,143,860,713.64 - Step 5: Solve for x
x = 63,143,860,713.64/287,959.97 - Step 6: Final answer
x = 219,279.99
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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.