Finding the Fourth Proportional to 355,361.60, 532,351.20 and 214,702.40
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Solution
The fourth proportional to 355,361.60, 532,351.20 and 214,702.40 is: 321,635.99
Step by Step Solution
- Step 1: Write the proportion equation
355,361.60 : 532,351.20 = 214,702.40 : x - Step 2: Convert to fraction form
355,361.60/532,351.20 = 214,702.40/x - Step 3: Cross multiply
355,361.60x = 532,351.20 × 214,702.40 - Step 4: Simplify right side
355,361.60x = 114,297,080,282.88 - Step 5: Solve for x
x = 114,297,080,282.88/355,361.60 - Step 6: Final answer
x = 321,635.99
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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.