Finding the Fourth Proportional to 197,418.05, 272,436.10 and 106,774.12
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Solution
The fourth proportional to 197,418.05, 272,436.10 and 106,774.12 is: 147,347.85
Step by Step Solution
- Step 1: Write the proportion equation
197,418.05 : 272,436.10 = 106,774.12 : x - Step 2: Convert to fraction form
197,418.05/272,436.10 = 106,774.12/x - Step 3: Cross multiply
197,418.05x = 272,436.10 × 106,774.12 - Step 4: Simplify right side
197,418.05x = 29,089,124,833.73 - Step 5: Solve for x
x = 29,089,124,833.73/197,418.05 - Step 6: Final answer
x = 147,347.85
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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.