Finding the Fourth Proportional to 208,207.80, 312,311.70 and 95,887.80
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Solution
The fourth proportional to 208,207.80, 312,311.70 and 95,887.80 is: 143,831.70
Step by Step Solution
- Step 1: Write the proportion equation
208,207.80 : 312,311.70 = 95,887.80 : x - Step 2: Convert to fraction form
208,207.80/312,311.70 = 95,887.80/x - Step 3: Cross multiply
208,207.80x = 312,311.70 × 95,887.80 - Step 4: Simplify right side
208,207.80x = 29,946,881,827.26 - Step 5: Solve for x
x = 29,946,881,827.26/208,207.80 - Step 6: Final answer
x = 143,831.70
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1.5x scale
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.