Finding the Fourth Proportional to 239,921.35, 359,668.14 and 121,531.75
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Solution
The fourth proportional to 239,921.35, 359,668.14 and 121,531.75 is: 182,189.28
Step by Step Solution
- Step 1: Write the proportion equation
239,921.35 : 359,668.14 = 121,531.75 : x - Step 2: Convert to fraction form
239,921.35/359,668.14 = 121,531.75/x - Step 3: Cross multiply
239,921.35x = 359,668.14 × 121,531.75 - Step 4: Simplify right side
239,921.35x = 43,711,098,473.45 - Step 5: Solve for x
x = 43,711,098,473.45/239,921.35 - Step 6: Final answer
x = 182,189.28
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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.