Finding the Fourth Proportional to 215,156.48, 322,512.38 and 82,000.99
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Solution
The fourth proportional to 215,156.48, 322,512.38 and 82,000.99 is: 122,916.74
Step by Step Solution
- Step 1: Write the proportion equation
215,156.48 : 322,512.38 = 82,000.99 : x - Step 2: Convert to fraction form
215,156.48/322,512.38 = 82,000.99/x - Step 3: Cross multiply
215,156.48x = 322,512.38 × 82,000.99 - Step 4: Simplify right side
215,156.48x = 26,446,332,424.69 - Step 5: Solve for x
x = 26,446,332,424.69/215,156.48 - Step 6: Final answer
x = 122,916.74
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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.