Finding the Fourth Proportional to 407,721.02, 562,668.99 and 226,435.82
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Solution
The fourth proportional to 407,721.02, 562,668.99 and 226,435.82 is: 312,489.20
Step by Step Solution
- Step 1: Write the proportion equation
407,721.02 : 562,668.99 = 226,435.82 : x - Step 2: Convert to fraction form
407,721.02/562,668.99 = 226,435.82/x - Step 3: Cross multiply
407,721.02x = 562,668.99 × 226,435.82 - Step 4: Simplify right side
407,721.02x = 127,408,414,139.22 - Step 5: Solve for x
x = 127,408,414,139.22/407,721.02 - Step 6: Final answer
x = 312,489.20
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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.