Finding the Fourth Proportional to 287,428.10, 396,663.02 and 160,103.75
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Solution
The fourth proportional to 287,428.10, 396,663.02 and 160,103.75 is: 220,949.99
Step by Step Solution
- Step 1: Write the proportion equation
287,428.10 : 396,663.02 = 160,103.75 : x - Step 2: Convert to fraction form
287,428.10/396,663.02 = 160,103.75/x - Step 3: Cross multiply
287,428.10x = 396,663.02 × 160,103.75 - Step 4: Simplify right side
287,428.10x = 63,507,234,204.49 - Step 5: Solve for x
x = 63,507,234,204.49/287,428.10 - Step 6: Final answer
x = 220,949.99
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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.