Finding the Fourth Proportional to 320,936.18, 442,905.75 and 177,696.21
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Solution
The fourth proportional to 320,936.18, 442,905.75 and 177,696.21 is: 245,228.43
Step by Step Solution
- Step 1: Write the proportion equation
320,936.18 : 442,905.75 = 177,696.21 : x - Step 2: Convert to fraction form
320,936.18/442,905.75 = 177,696.21/x - Step 3: Cross multiply
320,936.18x = 442,905.75 × 177,696.21 - Step 4: Simplify right side
320,936.18x = 78,702,673,162.21 - Step 5: Solve for x
x = 78,702,673,162.21/320,936.18 - Step 6: Final answer
x = 245,228.43
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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.