Finding the Fourth Proportional to 208,517.76, 312,728.67 and 124,301.70
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Solution
The fourth proportional to 208,517.76, 312,728.67 and 124,301.70 is: 186,423.95
Step by Step Solution
- Step 1: Write the proportion equation
208,517.76 : 312,728.67 = 124,301.70 : x - Step 2: Convert to fraction form
208,517.76/312,728.67 = 124,301.70/x - Step 3: Cross multiply
208,517.76x = 312,728.67 × 124,301.70 - Step 4: Simplify right side
208,517.76x = 38,872,705,319.74 - Step 5: Solve for x
x = 38,872,705,319.74/208,517.76 - Step 6: Final answer
x = 186,423.95
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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.