Finding the Fourth Proportional to 319,578.03, 479,367.73 and 129,904.53
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Solution
The fourth proportional to 319,578.03, 479,367.73 and 129,904.53 is: 194,857.07
Step by Step Solution
- Step 1: Write the proportion equation
319,578.03 : 479,367.73 = 129,904.53 : x - Step 2: Convert to fraction form
319,578.03/479,367.73 = 129,904.53/x - Step 3: Cross multiply
319,578.03x = 479,367.73 × 129,904.53 - Step 4: Simplify right side
319,578.03x = 62,272,039,338.06 - Step 5: Solve for x
x = 62,272,039,338.06/319,578.03 - Step 6: Final answer
x = 194,857.07
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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.