Finding the Fourth Proportional to 208,867.98, 313,021.34 and 113,955.95
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Solution
The fourth proportional to 208,867.98, 313,021.34 and 113,955.95 is: 170,780.81
Step by Step Solution
- Step 1: Write the proportion equation
208,867.98 : 313,021.34 = 113,955.95 : x - Step 2: Convert to fraction form
208,867.98/313,021.34 = 113,955.95/x - Step 3: Cross multiply
208,867.98x = 313,021.34 × 113,955.95 - Step 4: Simplify right side
208,867.98x = 35,670,642,035.09 - Step 5: Solve for x
x = 35,670,642,035.09/208,867.98 - Step 6: Final answer
x = 170,780.81
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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.