Finding the Fourth Proportional to 207,670.74, 311,373.03 and 87,695.19
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Solution
The fourth proportional to 207,670.74, 311,373.03 and 87,695.19 is: 131,486.59
Step by Step Solution
- Step 1: Write the proportion equation
207,670.74 : 311,373.03 = 87,695.19 : x - Step 2: Convert to fraction form
207,670.74/311,373.03 = 87,695.19/x - Step 3: Cross multiply
207,670.74x = 311,373.03 × 87,695.19 - Step 4: Simplify right side
207,670.74x = 27,305,917,026.73 - Step 5: Solve for x
x = 27,305,917,026.73/207,670.74 - Step 6: Final answer
x = 131,486.59
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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.