Finding the Fourth Proportional to 268,456.40, 370,524.36 and 155,291.60
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Solution
The fourth proportional to 268,456.40, 370,524.36 and 155,291.60 is: 214,333.95
Step by Step Solution
- Step 1: Write the proportion equation
268,456.40 : 370,524.36 = 155,291.60 : x - Step 2: Convert to fraction form
268,456.40/370,524.36 = 155,291.60/x - Step 3: Cross multiply
268,456.40x = 370,524.36 × 155,291.60 - Step 4: Simplify right side
268,456.40x = 57,539,320,703.38 - Step 5: Solve for x
x = 57,539,320,703.38/268,456.40 - Step 6: Final answer
x = 214,333.95
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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.