Finding the Fourth Proportional to 373,302.91, 515,158.14 and 212,153.80
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Solution
The fourth proportional to 373,302.91, 515,158.14 and 212,153.80 is: 292,772.31
Step by Step Solution
- Step 1: Write the proportion equation
373,302.91 : 515,158.14 = 212,153.80 : x - Step 2: Convert to fraction form
373,302.91/515,158.14 = 212,153.80/x - Step 3: Cross multiply
373,302.91x = 515,158.14 × 212,153.80 - Step 4: Simplify right side
373,302.91x = 109,292,757,001.93 - Step 5: Solve for x
x = 109,292,757,001.93/373,302.91 - Step 6: Final answer
x = 292,772.31
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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.