Finding the Fourth Proportional to 612,640.26, 918,333.45 and 212,953.05
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Solution
The fourth proportional to 612,640.26, 918,333.45 and 212,953.05 is: 319,211.65
Step by Step Solution
- Step 1: Write the proportion equation
612,640.26 : 918,333.45 = 212,953.05 : x - Step 2: Convert to fraction form
612,640.26/918,333.45 = 212,953.05/x - Step 3: Cross multiply
612,640.26x = 918,333.45 × 212,953.05 - Step 4: Simplify right side
612,640.26x = 195,561,909,094.52 - Step 5: Solve for x
x = 195,561,909,094.52/612,640.26 - Step 6: Final answer
x = 319,211.65
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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.