Finding the Fourth Proportional to 278,459.43, 384,274.38 and 151,134.99
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Solution
The fourth proportional to 278,459.43, 384,274.38 and 151,134.99 is: 208,566.49
Step by Step Solution
- Step 1: Write the proportion equation
278,459.43 : 384,274.38 = 151,134.99 : x - Step 2: Convert to fraction form
278,459.43/384,274.38 = 151,134.99/x - Step 3: Cross multiply
278,459.43x = 384,274.38 × 151,134.99 - Step 4: Simplify right side
278,459.43x = 58,077,304,578.56 - Step 5: Solve for x
x = 58,077,304,578.56/278,459.43 - Step 6: Final answer
x = 208,566.49
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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.