Finding the Fourth Proportional to 287,426.97, 396,661.46 and 160,102.62
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Solution
The fourth proportional to 287,426.97, 396,661.46 and 160,102.62 is: 220,948.43
Step by Step Solution
- Step 1: Write the proportion equation
287,426.97 : 396,661.46 = 160,102.62 : x - Step 2: Convert to fraction form
287,426.97/396,661.46 = 160,102.62/x - Step 3: Cross multiply
287,426.97x = 396,661.46 × 160,102.62 - Step 4: Simplify right side
287,426.97x = 63,506,538,198.51 - Step 5: Solve for x
x = 63,506,538,198.51/287,426.97 - Step 6: Final answer
x = 220,948.43
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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.