Finding the Fourth Proportional to 204,328.24, 306,489.28 and 91,929.09
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Solution
The fourth proportional to 204,328.24, 306,489.28 and 91,929.09 is: 137,892.25
Step by Step Solution
- Step 1: Write the proportion equation
204,328.24 : 306,489.28 = 91,929.09 : x - Step 2: Convert to fraction form
204,328.24/306,489.28 = 91,929.09/x - Step 3: Cross multiply
204,328.24x = 306,489.28 × 91,929.09 - Step 4: Simplify right side
204,328.24x = 28,175,280,317.77 - Step 5: Solve for x
x = 28,175,280,317.77/204,328.24 - Step 6: Final answer
x = 137,892.25
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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.