Finding the Fourth Proportional to 319,868.82, 479,969.34 and 130,468.14
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Solution
The fourth proportional to 319,868.82, 479,969.34 and 130,468.14 is: 195,769.96
Step by Step Solution
- Step 1: Write the proportion equation
319,868.82 : 479,969.34 = 130,468.14 : x - Step 2: Convert to fraction form
319,868.82/479,969.34 = 130,468.14/x - Step 3: Cross multiply
319,868.82x = 479,969.34 × 130,468.14 - Step 4: Simplify right side
319,868.82x = 62,620,707,046.83 - Step 5: Solve for x
x = 62,620,707,046.83/319,868.82 - Step 6: Final answer
x = 195,769.96
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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.