Finding the Fourth Proportional to 311,831.80, 467,796.71 and 101,420.53
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Solution
The fourth proportional to 311,831.80, 467,796.71 and 101,420.53 is: 152,146.74
Step by Step Solution
- Step 1: Write the proportion equation
311,831.80 : 467,796.71 = 101,420.53 : x - Step 2: Convert to fraction form
311,831.80/467,796.71 = 101,420.53/x - Step 3: Cross multiply
311,831.80x = 467,796.71 × 101,420.53 - Step 4: Simplify right side
311,831.80x = 47,444,190,260.46 - Step 5: Solve for x
x = 47,444,190,260.46/311,831.80 - Step 6: Final answer
x = 152,146.74
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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.