Finding the Fourth Proportional to 192,781.17, 289,125.18 and 74,376.99
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Solution
The fourth proportional to 192,781.17, 289,125.18 and 74,376.99 is: 111,547.52
Step by Step Solution
- Step 1: Write the proportion equation
192,781.17 : 289,125.18 = 74,376.99 : x - Step 2: Convert to fraction form
192,781.17/289,125.18 = 74,376.99/x - Step 3: Cross multiply
192,781.17x = 289,125.18 × 74,376.99 - Step 4: Simplify right side
192,781.17x = 21,504,260,621.61 - Step 5: Solve for x
x = 21,504,260,621.61/192,781.17 - Step 6: Final answer
x = 111,547.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.