Finding the Fourth Proportional to 279,237.30, 385,350.42 and 151,912.62
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Solution
The fourth proportional to 279,237.30, 385,350.42 and 151,912.62 is: 209,641.02
Step by Step Solution
- Step 1: Write the proportion equation
279,237.30 : 385,350.42 = 151,912.62 : x - Step 2: Convert to fraction form
279,237.30/385,350.42 = 151,912.62/x - Step 3: Cross multiply
279,237.30x = 385,350.42 × 151,912.62 - Step 4: Simplify right side
279,237.30x = 58,539,591,920.30 - Step 5: Solve for x
x = 58,539,591,920.30/279,237.30 - Step 6: Final answer
x = 209,641.02
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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.