Finding the Fourth Proportional to 356,837.22, 492,389.99 and 203,885.31
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Solution
The fourth proportional to 356,837.22, 492,389.99 and 203,885.31 is: 281,335.80
Step by Step Solution
- Step 1: Write the proportion equation
356,837.22 : 492,389.99 = 203,885.31 : x - Step 2: Convert to fraction form
356,837.22/492,389.99 = 203,885.31/x - Step 3: Cross multiply
356,837.22x = 492,389.99 × 203,885.31 - Step 4: Simplify right side
356,837.22x = 100,391,085,958.81 - Step 5: Solve for x
x = 100,391,085,958.81/356,837.22 - Step 6: Final answer
x = 281,335.80
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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.