Finding the Fourth Proportional to 319,523.05, 478,920.13 and 199,635.13
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Solution
The fourth proportional to 319,523.05, 478,920.13 and 199,635.13 is: 299,224.99
Step by Step Solution
- Step 1: Write the proportion equation
319,523.05 : 478,920.13 = 199,635.13 : x - Step 2: Convert to fraction form
319,523.05/478,920.13 = 199,635.13/x - Step 3: Cross multiply
319,523.05x = 478,920.13 × 199,635.13 - Step 4: Simplify right side
319,523.05x = 95,609,282,412.17 - Step 5: Solve for x
x = 95,609,282,412.17/319,523.05 - Step 6: Final answer
x = 299,224.99
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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.