Finding the Fourth Proportional to 299,661.29, 413,545.15 and 172,336.99
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Solution
The fourth proportional to 299,661.29, 413,545.15 and 172,336.99 is: 237,832.28
Step by Step Solution
- Step 1: Write the proportion equation
299,661.29 : 413,545.15 = 172,336.99 : x - Step 2: Convert to fraction form
299,661.29/413,545.15 = 172,336.99/x - Step 3: Cross multiply
299,661.29x = 413,545.15 × 172,336.99 - Step 4: Simplify right side
299,661.29x = 71,269,126,380.10 - Step 5: Solve for x
x = 71,269,126,380.10/299,661.29 - Step 6: Final answer
x = 237,832.28
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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.