Finding the Fourth Proportional to 215,867.07, 297,897.84 and 120,379.80
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Solution
The fourth proportional to 215,867.07, 297,897.84 and 120,379.80 is: 166,124.84
Step by Step Solution
- Step 1: Write the proportion equation
215,867.07 : 297,897.84 = 120,379.80 : x - Step 2: Convert to fraction form
215,867.07/297,897.84 = 120,379.80/x - Step 3: Cross multiply
215,867.07x = 297,897.84 × 120,379.80 - Step 4: Simplify right side
215,867.07x = 35,860,882,399.63 - Step 5: Solve for x
x = 35,860,882,399.63/215,867.07 - Step 6: Final answer
x = 166,124.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.