Finding the Fourth Proportional to 308,546.13, 425,833.10 and 172,587.63
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Solution
The fourth proportional to 308,546.13, 425,833.10 and 172,587.63 is: 238,192.99
Step by Step Solution
- Step 1: Write the proportion equation
308,546.13 : 425,833.10 = 172,587.63 : x - Step 2: Convert to fraction form
308,546.13/425,833.10 = 172,587.63/x - Step 3: Cross multiply
308,546.13x = 425,833.10 × 172,587.63 - Step 4: Simplify right side
308,546.13x = 73,493,524,641.61 - Step 5: Solve for x
x = 73,493,524,641.61/308,546.13 - Step 6: Final answer
x = 238,192.99
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1.5x scale
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.