Finding the Fourth Proportional to 328,473.20, 492,709.80 and 118,083.80
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Solution
The fourth proportional to 328,473.20, 492,709.80 and 118,083.80 is: 177,125.70
Step by Step Solution
- Step 1: Write the proportion equation
328,473.20 : 492,709.80 = 118,083.80 : x - Step 2: Convert to fraction form
328,473.20/492,709.80 = 118,083.80/x - Step 3: Cross multiply
328,473.20x = 492,709.80 × 118,083.80 - Step 4: Simplify right side
328,473.20x = 58,181,045,481.24 - Step 5: Solve for x
x = 58,181,045,481.24/328,473.20 - Step 6: Final answer
x = 177,125.70
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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.