Finding the Fourth Proportional to 319,118.62, 478,721.67 and 141,621.70
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Solution
The fourth proportional to 319,118.62, 478,721.67 and 141,621.70 is: 212,451.96
Step by Step Solution
- Step 1: Write the proportion equation
319,118.62 : 478,721.67 = 141,621.70 : x - Step 2: Convert to fraction form
319,118.62/478,721.67 = 141,621.70/x - Step 3: Cross multiply
319,118.62x = 478,721.67 × 141,621.70 - Step 4: Simplify right side
319,118.62x = 67,797,376,732.24 - Step 5: Solve for x
x = 67,797,376,732.24/319,118.62 - Step 6: Final answer
x = 212,451.96
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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.