Finding the Fourth Proportional to 212,781.91, 293,635.04 and 115,986.69
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Solution
The fourth proportional to 212,781.91, 293,635.04 and 115,986.69 is: 160,059.45
Step by Step Solution
- Step 1: Write the proportion equation
212,781.91 : 293,635.04 = 115,986.69 : x - Step 2: Convert to fraction form
212,781.91/293,635.04 = 115,986.69/x - Step 3: Cross multiply
212,781.91x = 293,635.04 × 115,986.69 - Step 4: Simplify right side
212,781.91x = 34,057,756,357.62 - Step 5: Solve for x
x = 34,057,756,357.62/212,781.91 - Step 6: Final answer
x = 160,059.45
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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.