Finding the Fourth Proportional to 287,875.08, 397,428.21 and 202,097.28
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Solution
The fourth proportional to 287,875.08, 397,428.21 and 202,097.28 is: 279,006.99
Step by Step Solution
- Step 1: Write the proportion equation
287,875.08 : 397,428.21 = 202,097.28 : x - Step 2: Convert to fraction form
287,875.08/397,428.21 = 202,097.28/x - Step 3: Cross multiply
287,875.08x = 397,428.21 × 202,097.28 - Step 4: Simplify right side
287,875.08x = 80,319,160,236.27 - Step 5: Solve for x
x = 80,319,160,236.27/287,875.08 - Step 6: Final answer
x = 279,006.99
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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.