Finding the Fourth Proportional to 217,115.36, 325,693.68 and 67,357.28
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Solution
The fourth proportional to 217,115.36, 325,693.68 and 67,357.28 is: 101,042.32
Step by Step Solution
- Step 1: Write the proportion equation
217,115.36 : 325,693.68 = 67,357.28 : x - Step 2: Convert to fraction form
217,115.36/325,693.68 = 67,357.28/x - Step 3: Cross multiply
217,115.36x = 325,693.68 × 67,357.28 - Step 4: Simplify right side
217,115.36x = 21,937,840,397.99 - Step 5: Solve for x
x = 21,937,840,397.99/217,115.36 - Step 6: Final answer
x = 101,042.32
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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.