Finding the Fourth Proportional to 306,029.13, 459,007.14 and 81,405.99
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Solution
The fourth proportional to 306,029.13, 459,007.14 and 81,405.99 is: 122,099.26
Step by Step Solution
- Step 1: Write the proportion equation
306,029.13 : 459,007.14 = 81,405.99 : x - Step 2: Convert to fraction form
306,029.13/459,007.14 = 81,405.99/x - Step 3: Cross multiply
306,029.13x = 459,007.14 × 81,405.99 - Step 4: Simplify right side
306,029.13x = 37,365,930,648.77 - Step 5: Solve for x
x = 37,365,930,648.77/306,029.13 - Step 6: Final answer
x = 122,099.26
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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.