Finding the Fourth Proportional to 347,242.25, 520,915.38 and 125,678.09
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Solution
The fourth proportional to 347,242.25, 520,915.38 and 125,678.09 is: 188,535.96
Step by Step Solution
- Step 1: Write the proportion equation
347,242.25 : 520,915.38 = 125,678.09 : x - Step 2: Convert to fraction form
347,242.25/520,915.38 = 125,678.09/x - Step 3: Cross multiply
347,242.25x = 520,915.38 × 125,678.09 - Step 4: Simplify right side
347,242.25x = 65,467,650,010.02 - Step 5: Solve for x
x = 65,467,650,010.02/347,242.25 - Step 6: Final answer
x = 188,535.96
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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.