Finding the Fourth Proportional to 187,982.20, 259,434.38 and 107,421.62
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Solution
The fourth proportional to 187,982.20, 259,434.38 and 107,421.62 is: 148,252.66
Step by Step Solution
- Step 1: Write the proportion equation
187,982.20 : 259,434.38 = 107,421.62 : x - Step 2: Convert to fraction form
187,982.20/259,434.38 = 107,421.62/x - Step 3: Cross multiply
187,982.20x = 259,434.38 × 107,421.62 - Step 4: Simplify right side
187,982.20x = 27,868,860,846.19 - Step 5: Solve for x
x = 27,868,860,846.19/187,982.20 - Step 6: Final answer
x = 148,252.66
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1.5x scale
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.