Finding the Fourth Proportional to 212,197.20, 292,817.88 and 121,553.52
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Solution
The fourth proportional to 212,197.20, 292,817.88 and 121,553.52 is: 167,735.69
Step by Step Solution
- Step 1: Write the proportion equation
212,197.20 : 292,817.88 = 121,553.52 : x - Step 2: Convert to fraction form
212,197.20/292,817.88 = 121,553.52/x - Step 3: Cross multiply
212,197.20x = 292,817.88 × 121,553.52 - Step 4: Simplify right side
212,197.20x = 35,593,044,032.94 - Step 5: Solve for x
x = 35,593,044,032.94/212,197.20 - Step 6: Final answer
x = 167,735.69
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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.