Finding the Fourth Proportional to 287,649.97, 396,958.80 and 160,333.63
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Solution
The fourth proportional to 287,649.97, 396,958.80 and 160,333.63 is: 221,261.44
Step by Step Solution
- Step 1: Write the proportion equation
287,649.97 : 396,958.80 = 160,333.63 : x - Step 2: Convert to fraction form
287,649.97/396,958.80 = 160,333.63/x - Step 3: Cross multiply
287,649.97x = 396,958.80 × 160,333.63 - Step 4: Simplify right side
287,649.97x = 63,645,845,364.44 - Step 5: Solve for x
x = 63,645,845,364.44/287,649.97 - Step 6: Final answer
x = 221,261.44
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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.