Finding the Fourth Proportional to 287,591.76, 396,864.36 and 160,269.84
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Solution
The fourth proportional to 287,591.76, 396,864.36 and 160,269.84 is: 221,165.54
Step by Step Solution
- Step 1: Write the proportion equation
287,591.76 : 396,864.36 = 160,269.84 : x - Step 2: Convert to fraction form
287,591.76/396,864.36 = 160,269.84/x - Step 3: Cross multiply
287,591.76x = 396,864.36 × 160,269.84 - Step 4: Simplify right side
287,591.76x = 63,605,387,478.90 - Step 5: Solve for x
x = 63,605,387,478.90/287,591.76 - Step 6: Final answer
x = 221,165.54
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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.