Finding the Fourth Proportional to 379,843.98, 569,850.21 and 143,188.71
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Solution
The fourth proportional to 379,843.98, 569,850.21 and 143,188.71 is: 214,814.82
Step by Step Solution
- Step 1: Write the proportion equation
379,843.98 : 569,850.21 = 143,188.71 : x - Step 2: Convert to fraction form
379,843.98/569,850.21 = 143,188.71/x - Step 3: Cross multiply
379,843.98x = 569,850.21 × 143,188.71 - Step 4: Simplify right side
379,843.98x = 81,596,116,463.13 - Step 5: Solve for x
x = 81,596,116,463.13/379,843.98 - Step 6: Final answer
x = 214,814.82
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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.