Finding the Fourth Proportional to 465,675.67, 642,638.21 and 281,911.80
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Solution
The fourth proportional to 465,675.67, 642,638.21 and 281,911.80 is: 389,041.79
Step by Step Solution
- Step 1: Write the proportion equation
465,675.67 : 642,638.21 = 281,911.80 : x - Step 2: Convert to fraction form
465,675.67/642,638.21 = 281,911.80/x - Step 3: Cross multiply
465,675.67x = 642,638.21 × 281,911.80 - Step 4: Simplify right side
465,675.67x = 181,167,295,234.66 - Step 5: Solve for x
x = 181,167,295,234.66/465,675.67 - Step 6: Final answer
x = 389,041.79
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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.