Finding the Fourth Proportional to 384,897.68, 531,137.27 and 212,805.62
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Solution
The fourth proportional to 384,897.68, 531,137.27 and 212,805.62 is: 293,659.85
Step by Step Solution
- Step 1: Write the proportion equation
384,897.68 : 531,137.27 = 212,805.62 : x - Step 2: Convert to fraction form
384,897.68/531,137.27 = 212,805.62/x - Step 3: Cross multiply
384,897.68x = 531,137.27 × 212,805.62 - Step 4: Simplify right side
384,897.68x = 113,028,994,983.43 - Step 5: Solve for x
x = 113,028,994,983.43/384,897.68 - Step 6: Final answer
x = 293,659.85
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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.