Finding the Fourth Proportional to 285,772.84, 428,628.90 and 117,310.84
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Solution
The fourth proportional to 285,772.84, 428,628.90 and 117,310.84 is: 175,953.80
Step by Step Solution
- Step 1: Write the proportion equation
285,772.84 : 428,628.90 = 117,310.84 : x - Step 2: Convert to fraction form
285,772.84/428,628.90 = 117,310.84/x - Step 3: Cross multiply
285,772.84x = 428,628.90 × 117,310.84 - Step 4: Simplify right side
285,772.84x = 50,282,816,307.28 - Step 5: Solve for x
x = 50,282,816,307.28/285,772.84 - Step 6: Final answer
x = 175,953.80
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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.