Finding the Fourth Proportional to 287,757.04, 397,116.12 and 160,455.28
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Solution
The fourth proportional to 287,757.04, 397,116.12 and 160,455.28 is: 221,434.65
Step by Step Solution
- Step 1: Write the proportion equation
287,757.04 : 397,116.12 = 160,455.28 : x - Step 2: Convert to fraction form
287,757.04/397,116.12 = 160,455.28/x - Step 3: Cross multiply
287,757.04x = 397,116.12 × 160,455.28 - Step 4: Simplify right side
287,757.04x = 63,719,378,227.11 - Step 5: Solve for x
x = 63,719,378,227.11/287,757.04 - Step 6: Final answer
x = 221,434.65
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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.