Finding the Fourth Proportional to 422,376.22, 633,431.84 and 138,001.99
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Solution
The fourth proportional to 422,376.22, 633,431.84 and 138,001.99 is: 206,959.69
Step by Step Solution
- Step 1: Write the proportion equation
422,376.22 : 633,431.84 = 138,001.99 : x - Step 2: Convert to fraction form
422,376.22/633,431.84 = 138,001.99/x - Step 3: Cross multiply
422,376.22x = 633,431.84 × 138,001.99 - Step 4: Simplify right side
422,376.22x = 87,414,850,592.19 - Step 5: Solve for x
x = 87,414,850,592.19/422,376.22 - Step 6: Final answer
x = 206,959.69
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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.