Finding the Fourth Proportional to 279,236.84, 385,174.04 and 243,512.60
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Solution
The fourth proportional to 279,236.84, 385,174.04 and 243,512.60 is: 335,896.70
Step by Step Solution
- Step 1: Write the proportion equation
279,236.84 : 385,174.04 = 243,512.60 : x - Step 2: Convert to fraction form
279,236.84/385,174.04 = 243,512.60/x - Step 3: Cross multiply
279,236.84x = 385,174.04 × 243,512.60 - Step 4: Simplify right side
279,236.84x = 93,794,731,932.90 - Step 5: Solve for x
x = 93,794,731,932.90/279,236.84 - Step 6: Final answer
x = 335,896.70
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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.