Finding the Fourth Proportional to 268,747.60, 403,121.40 and 239,717.20
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Solution
The fourth proportional to 268,747.60, 403,121.40 and 239,717.20 is: 359,575.80
Step by Step Solution
- Step 1: Write the proportion equation
268,747.60 : 403,121.40 = 239,717.20 : x - Step 2: Convert to fraction form
268,747.60/403,121.40 = 239,717.20/x - Step 3: Cross multiply
268,747.60x = 403,121.40 × 239,717.20 - Step 4: Simplify right side
268,747.60x = 96,635,133,268.08 - Step 5: Solve for x
x = 96,635,133,268.08/268,747.60 - Step 6: Final answer
x = 359,575.80
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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.