Finding the Fourth Proportional to 320,925.63, 442,877.18 and 177,694.75
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Solution
The fourth proportional to 320,925.63, 442,877.18 and 177,694.75 is: 245,218.65
Step by Step Solution
- Step 1: Write the proportion equation
320,925.63 : 442,877.18 = 177,694.75 : x - Step 2: Convert to fraction form
320,925.63/442,877.18 = 177,694.75/x - Step 3: Cross multiply
320,925.63x = 442,877.18 × 177,694.75 - Step 4: Simplify right side
320,925.63x = 78,696,949,780.81 - Step 5: Solve for x
x = 78,696,949,780.81/320,925.63 - Step 6: Final answer
x = 245,218.65
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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.