Finding the Fourth Proportional to 287,021.16, 430,597.26 and 87,369.84
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Solution
The fourth proportional to 287,021.16, 430,597.26 and 87,369.84 is: 131,074.70
Step by Step Solution
- Step 1: Write the proportion equation
287,021.16 : 430,597.26 = 87,369.84 : x - Step 2: Convert to fraction form
287,021.16/430,597.26 = 87,369.84/x - Step 3: Cross multiply
287,021.16x = 430,597.26 × 87,369.84 - Step 4: Simplify right side
287,021.16x = 37,621,213,710.64 - Step 5: Solve for x
x = 37,621,213,710.64/287,021.16 - Step 6: Final answer
x = 131,074.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.