Finding the Fourth Proportional to 512,115.10, 767,844.60 and 212,714.80
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Solution
The fourth proportional to 512,115.10, 767,844.60 and 212,714.80 is: 318,935.94
Step by Step Solution
- Step 1: Write the proportion equation
512,115.10 : 767,844.60 = 212,714.80 : x - Step 2: Convert to fraction form
512,115.10/767,844.60 = 212,714.80/x - Step 3: Cross multiply
512,115.10x = 767,844.60 × 212,714.80 - Step 4: Simplify right side
512,115.10x = 163,331,910,520.08 - Step 5: Solve for x
x = 163,331,910,520.08/512,115.10 - Step 6: Final answer
x = 318,935.94
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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.