Finding the Fourth Proportional to 215,155.98, 322,511.63 and 82,000.49
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Solution
The fourth proportional to 215,155.98, 322,511.63 and 82,000.49 is: 122,915.99
Step by Step Solution
- Step 1: Write the proportion equation
215,155.98 : 322,511.63 = 82,000.49 : x - Step 2: Convert to fraction form
215,155.98/322,511.63 = 82,000.49/x - Step 3: Cross multiply
215,155.98x = 322,511.63 × 82,000.49 - Step 4: Simplify right side
215,155.98x = 26,446,109,668.14 - Step 5: Solve for x
x = 26,446,109,668.14/215,155.98 - Step 6: Final answer
x = 122,915.99
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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.