Finding the Fourth Proportional to 319,864.40, 479,969.40 and 132,894.80
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Solution
The fourth proportional to 319,864.40, 479,969.40 and 132,894.80 is: 199,413.99
Step by Step Solution
- Step 1: Write the proportion equation
319,864.40 : 479,969.40 = 132,894.80 : x - Step 2: Convert to fraction form
319,864.40/479,969.40 = 132,894.80/x - Step 3: Cross multiply
319,864.40x = 479,969.40 × 132,894.80 - Step 4: Simplify right side
319,864.40x = 63,785,437,419.12 - Step 5: Solve for x
x = 63,785,437,419.12/319,864.40 - Step 6: Final answer
x = 199,413.99
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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.