Finding the Fourth Proportional to 278,997.68, 384,821.88 and 183,473.84
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Solution
The fourth proportional to 278,997.68, 384,821.88 and 183,473.84 is: 253,065.72
Step by Step Solution
- Step 1: Write the proportion equation
278,997.68 : 384,821.88 = 183,473.84 : x - Step 2: Convert to fraction form
278,997.68/384,821.88 = 183,473.84/x - Step 3: Cross multiply
278,997.68x = 384,821.88 × 183,473.84 - Step 4: Simplify right side
278,997.68x = 70,604,748,039.62 - Step 5: Solve for x
x = 70,604,748,039.62/278,997.68 - Step 6: Final answer
x = 253,065.72
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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.