Finding the Fourth Proportional to 192,678.12, 265,986.72 and 144,949.68
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Solution
The fourth proportional to 192,678.12, 265,986.72 and 144,949.68 is: 200,098.95
Step by Step Solution
- Step 1: Write the proportion equation
192,678.12 : 265,986.72 = 144,949.68 : x - Step 2: Convert to fraction form
192,678.12/265,986.72 = 144,949.68/x - Step 3: Cross multiply
192,678.12x = 265,986.72 × 144,949.68 - Step 4: Simplify right side
192,678.12x = 38,554,689,948.25 - Step 5: Solve for x
x = 38,554,689,948.25/192,678.12 - Step 6: Final answer
x = 200,098.95
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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.