Finding the Fourth Proportional to 212,122.56, 292,711.70 and 124,893.80
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Solution
The fourth proportional to 212,122.56, 292,711.70 and 124,893.80 is: 172,343.17
Step by Step Solution
- Step 1: Write the proportion equation
212,122.56 : 292,711.70 = 124,893.80 : x - Step 2: Convert to fraction form
212,122.56/292,711.70 = 124,893.80/x - Step 3: Cross multiply
212,122.56x = 292,711.70 × 124,893.80 - Step 4: Simplify right side
212,122.56x = 36,557,874,429.43 - Step 5: Solve for x
x = 36,557,874,429.43/212,122.56 - Step 6: Final answer
x = 172,343.17
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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.