Finding the Fourth Proportional to 299,731.36, 413,628.96 and 172,403.68
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Solution
The fourth proportional to 299,731.36, 413,628.96 and 172,403.68 is: 237,916.90
Step by Step Solution
- Step 1: Write the proportion equation
299,731.36 : 413,628.96 = 172,403.68 : x - Step 2: Convert to fraction form
299,731.36/413,628.96 = 172,403.68/x - Step 3: Cross multiply
299,731.36x = 413,628.96 × 172,403.68 - Step 4: Simplify right side
299,731.36x = 71,311,154,858.57 - Step 5: Solve for x
x = 71,311,154,858.57/299,731.36 - Step 6: Final answer
x = 237,916.90
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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.