Finding the Fourth Proportional to 387,991.22, 535,474.49 and 235,024.92
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Solution
The fourth proportional to 387,991.22, 535,474.49 and 235,024.92 is: 324,362.62
Step by Step Solution
- Step 1: Write the proportion equation
387,991.22 : 535,474.49 = 235,024.92 : x - Step 2: Convert to fraction form
387,991.22/535,474.49 = 235,024.92/x - Step 3: Cross multiply
387,991.22x = 535,474.49 × 235,024.92 - Step 4: Simplify right side
387,991.22x = 125,849,849,174.29 - Step 5: Solve for x
x = 125,849,849,174.29/387,991.22 - Step 6: Final answer
x = 324,362.62
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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.