Finding the Fourth Proportional to 287,838.20, 397,217.58 and 158,773.56
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Solution
The fourth proportional to 287,838.20, 397,217.58 and 158,773.56 is: 219,107.99
Step by Step Solution
- Step 1: Write the proportion equation
287,838.20 : 397,217.58 = 158,773.56 : x - Step 2: Convert to fraction form
287,838.20/397,217.58 = 158,773.56/x - Step 3: Cross multiply
287,838.20x = 397,217.58 × 158,773.56 - Step 4: Simplify right side
287,838.20x = 63,067,649,271.18 - Step 5: Solve for x
x = 63,067,649,271.18/287,838.20 - Step 6: Final answer
x = 219,107.99
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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.