Finding the Fourth Proportional to 247,382.11, 341,387.36 and 139,949.92
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Solution
The fourth proportional to 247,382.11, 341,387.36 and 139,949.92 is: 193,130.92
Step by Step Solution
- Step 1: Write the proportion equation
247,382.11 : 341,387.36 = 139,949.92 : x - Step 2: Convert to fraction form
247,382.11/341,387.36 = 139,949.92/x - Step 3: Cross multiply
247,382.11x = 341,387.36 × 139,949.92 - Step 4: Simplify right side
247,382.11x = 47,777,133,721.01 - Step 5: Solve for x
x = 47,777,133,721.01/247,382.11 - Step 6: Final answer
x = 193,130.92
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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.