Finding the Fourth Proportional to 319,524.05, 478,921.63 and 199,636.13
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Solution
The fourth proportional to 319,524.05, 478,921.63 and 199,636.13 is: 299,226.49
Step by Step Solution
- Step 1: Write the proportion equation
319,524.05 : 478,921.63 = 199,636.13 : x - Step 2: Convert to fraction form
319,524.05/478,921.63 = 199,636.13/x - Step 3: Cross multiply
319,524.05x = 478,921.63 × 199,636.13 - Step 4: Simplify right side
319,524.05x = 95,610,060,786.49 - Step 5: Solve for x
x = 95,610,060,786.49/319,524.05 - Step 6: Final answer
x = 299,226.49
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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.