Finding the Fourth Proportional to 434,614.20, 651,702.60 and 257,175.60
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Solution
The fourth proportional to 434,614.20, 651,702.60 and 257,175.60 is: 385,633.99
Step by Step Solution
- Step 1: Write the proportion equation
434,614.20 : 651,702.60 = 257,175.60 : x - Step 2: Convert to fraction form
434,614.20/651,702.60 = 257,175.60/x - Step 3: Cross multiply
434,614.20x = 651,702.60 × 257,175.60 - Step 4: Simplify right side
434,614.20x = 167,602,007,176.56 - Step 5: Solve for x
x = 167,602,007,176.56/434,614.20 - Step 6: Final answer
x = 385,633.99
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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.