Finding the Fourth Proportional to 213,677.08, 320,397.26 and 87,405.98
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Solution
The fourth proportional to 213,677.08, 320,397.26 and 87,405.98 is: 131,060.55
Step by Step Solution
- Step 1: Write the proportion equation
213,677.08 : 320,397.26 = 87,405.98 : x - Step 2: Convert to fraction form
213,677.08/320,397.26 = 87,405.98/x - Step 3: Cross multiply
213,677.08x = 320,397.26 × 87,405.98 - Step 4: Simplify right side
213,677.08x = 28,004,636,499.61 - Step 5: Solve for x
x = 28,004,636,499.61/213,677.08 - Step 6: Final answer
x = 131,060.55
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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.