Finding the Fourth Proportional to 199,946.40, 275,934.36 and 115,063.68
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Solution
The fourth proportional to 199,946.40, 275,934.36 and 115,063.68 is: 158,792.67
Step by Step Solution
- Step 1: Write the proportion equation
199,946.40 : 275,934.36 = 115,063.68 : x - Step 2: Convert to fraction form
199,946.40/275,934.36 = 115,063.68/x - Step 3: Cross multiply
199,946.40x = 275,934.36 × 115,063.68 - Step 4: Simplify right side
199,946.40x = 31,750,022,900.04 - Step 5: Solve for x
x = 31,750,022,900.04/199,946.40 - Step 6: Final answer
x = 158,792.67
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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.