Finding the Fourth Proportional to 207,398.16, 286,230.96 and 126,879.30
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Solution
The fourth proportional to 207,398.16, 286,230.96 and 126,879.30 is: 175,106.59
Step by Step Solution
- Step 1: Write the proportion equation
207,398.16 : 286,230.96 = 126,879.30 : x - Step 2: Convert to fraction form
207,398.16/286,230.96 = 126,879.30/x - Step 3: Cross multiply
207,398.16x = 286,230.96 × 126,879.30 - Step 4: Simplify right side
207,398.16x = 36,316,783,843.13 - Step 5: Solve for x
x = 36,316,783,843.13/207,398.16 - Step 6: Final answer
x = 175,106.59
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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.