Finding the Fourth Proportional to 392,971.92, 542,301.22 and 214,123.92
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Solution
The fourth proportional to 392,971.92, 542,301.22 and 214,123.92 is: 295,490.99
Step by Step Solution
- Step 1: Write the proportion equation
392,971.92 : 542,301.22 = 214,123.92 : x - Step 2: Convert to fraction form
392,971.92/542,301.22 = 214,123.92/x - Step 3: Cross multiply
392,971.92x = 542,301.22 × 214,123.92 - Step 4: Simplify right side
392,971.92x = 116,119,663,047.18 - Step 5: Solve for x
x = 116,119,663,047.18/392,971.92 - Step 6: Final answer
x = 295,490.99
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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.