Finding the Fourth Proportional to 203,887.45, 305,831.18 and 133,028.65
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Solution
The fourth proportional to 203,887.45, 305,831.18 and 133,028.65 is: 199,542.98
Step by Step Solution
- Step 1: Write the proportion equation
203,887.45 : 305,831.18 = 133,028.65 : x - Step 2: Convert to fraction form
203,887.45/305,831.18 = 133,028.65/x - Step 3: Cross multiply
203,887.45x = 305,831.18 × 133,028.65 - Step 4: Simplify right side
203,887.45x = 40,684,309,003.31 - Step 5: Solve for x
x = 40,684,309,003.31/203,887.45 - Step 6: Final answer
x = 199,542.98
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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.