Finding the Fourth Proportional to 212,972.46, 319,458.36 and 55,201.05
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Solution
The fourth proportional to 212,972.46, 319,458.36 and 55,201.05 is: 82,801.49
Step by Step Solution
- Step 1: Write the proportion equation
212,972.46 : 319,458.36 = 55,201.05 : x - Step 2: Convert to fraction form
212,972.46/319,458.36 = 55,201.05/x - Step 3: Cross multiply
212,972.46x = 319,458.36 × 55,201.05 - Step 4: Simplify right side
212,972.46x = 17,634,436,903.28 - Step 5: Solve for x
x = 17,634,436,903.28/212,972.46 - Step 6: Final answer
x = 82,801.49
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1.5x scale
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.