Finding the Fourth Proportional to 207,518.21, 286,385.77 and 126,920.42
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Solution
The fourth proportional to 207,518.21, 286,385.77 and 126,920.42 is: 175,156.69
Step by Step Solution
- Step 1: Write the proportion equation
207,518.21 : 286,385.77 = 126,920.42 : x - Step 2: Convert to fraction form
207,518.21/286,385.77 = 126,920.42/x - Step 3: Cross multiply
207,518.21x = 286,385.77 × 126,920.42 - Step 4: Simplify right side
207,518.21x = 36,348,202,210.42 - Step 5: Solve for x
x = 36,348,202,210.42/207,518.21 - Step 6: Final answer
x = 175,156.69
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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.