Finding the Fourth Proportional to 383,911.92, 529,692.12 and 247,951.68
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Solution
The fourth proportional to 383,911.92, 529,692.12 and 247,951.68 is: 342,104.64
Step by Step Solution
- Step 1: Write the proportion equation
383,911.92 : 529,692.12 = 247,951.68 : x - Step 2: Convert to fraction form
383,911.92/529,692.12 = 247,951.68/x - Step 3: Cross multiply
383,911.92x = 529,692.12 × 247,951.68 - Step 4: Simplify right side
383,911.92x = 131,338,051,036.76 - Step 5: Solve for x
x = 131,338,051,036.76/383,911.92 - Step 6: Final answer
x = 342,104.64
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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.