Finding the Fourth Proportional to 197,432.44, 272,456.84 and 111,409.68
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Solution
The fourth proportional to 197,432.44, 272,456.84 and 111,409.68 is: 153,745.40
Step by Step Solution
- Step 1: Write the proportion equation
197,432.44 : 272,456.84 = 111,409.68 : x - Step 2: Convert to fraction form
197,432.44/272,456.84 = 111,409.68/x - Step 3: Cross multiply
197,432.44x = 272,456.84 × 111,409.68 - Step 4: Simplify right side
197,432.44x = 30,354,329,358.21 - Step 5: Solve for x
x = 30,354,329,358.21/197,432.44 - Step 6: Final answer
x = 153,745.40
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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.