Finding the Fourth Proportional to 319,486.16, 440,891.36 and 176,245.92
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Solution
The fourth proportional to 319,486.16, 440,891.36 and 176,245.92 is: 243,219.62
Step by Step Solution
- Step 1: Write the proportion equation
319,486.16 : 440,891.36 = 176,245.92 : x - Step 2: Convert to fraction form
319,486.16/440,891.36 = 176,245.92/x - Step 3: Cross multiply
319,486.16x = 440,891.36 × 176,245.92 - Step 4: Simplify right side
319,486.16x = 77,705,303,363.25 - Step 5: Solve for x
x = 77,705,303,363.25/319,486.16 - Step 6: Final answer
x = 243,219.62
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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.