Finding the Fourth Proportional to 339,879.49, 509,521.16 and 129,377.41
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Solution
The fourth proportional to 339,879.49, 509,521.16 and 129,377.41 is: 193,952.65
Step by Step Solution
- Step 1: Write the proportion equation
339,879.49 : 509,521.16 = 129,377.41 : x - Step 2: Convert to fraction form
339,879.49/509,521.16 = 129,377.41/x - Step 3: Cross multiply
339,879.49x = 509,521.16 × 129,377.41 - Step 4: Simplify right side
339,879.49x = 65,920,527,374.11 - Step 5: Solve for x
x = 65,920,527,374.11/339,879.49 - Step 6: Final answer
x = 193,952.65
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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.