Finding the Fourth Proportional to 326,788.13, 490,601.99 and 251,955.81
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Solution
The fourth proportional to 326,788.13, 490,601.99 and 251,955.81 is: 378,257.38
Step by Step Solution
- Step 1: Write the proportion equation
326,788.13 : 490,601.99 = 251,955.81 : x - Step 2: Convert to fraction form
326,788.13/490,601.99 = 251,955.81/x - Step 3: Cross multiply
326,788.13x = 490,601.99 × 251,955.81 - Step 4: Simplify right side
326,788.13x = 123,610,022,407.95 - Step 5: Solve for x
x = 123,610,022,407.95/326,788.13 - Step 6: Final answer
x = 378,257.38
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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.