Finding the Fourth Proportional to 319,365.68, 479,247.95 and 212,824.39
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Solution
The fourth proportional to 319,365.68, 479,247.95 and 212,824.39 is: 319,369.49
Step by Step Solution
- Step 1: Write the proportion equation
319,365.68 : 479,247.95 = 212,824.39 : x - Step 2: Convert to fraction form
319,365.68/479,247.95 = 212,824.39/x - Step 3: Cross multiply
319,365.68x = 479,247.95 × 212,824.39 - Step 4: Simplify right side
319,365.68x = 101,995,654,104.25 - Step 5: Solve for x
x = 101,995,654,104.25/319,365.68 - Step 6: Final answer
x = 319,369.49
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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.