Finding the Fourth Proportional to 263,706.48, 363,915.36 and 156,329.28
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Solution
The fourth proportional to 263,706.48, 363,915.36 and 156,329.28 is: 215,734.65
Step by Step Solution
- Step 1: Write the proportion equation
263,706.48 : 363,915.36 = 156,329.28 : x - Step 2: Convert to fraction form
263,706.48/363,915.36 = 156,329.28/x - Step 3: Cross multiply
263,706.48x = 363,915.36 × 156,329.28 - Step 4: Simplify right side
263,706.48x = 56,890,626,209.74 - Step 5: Solve for x
x = 56,890,626,209.74/263,706.48 - Step 6: Final answer
x = 215,734.65
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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.