Finding the Fourth Proportional to 354,074.28, 531,163.80 and 117,364.74
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Solution
The fourth proportional to 354,074.28, 531,163.80 and 117,364.74 is: 176,064.47
Step by Step Solution
- Step 1: Write the proportion equation
354,074.28 : 531,163.80 = 117,364.74 : x - Step 2: Convert to fraction form
354,074.28/531,163.80 = 117,364.74/x - Step 3: Cross multiply
354,074.28x = 531,163.80 × 117,364.74 - Step 4: Simplify right side
354,074.28x = 62,339,901,284.41 - Step 5: Solve for x
x = 62,339,901,284.41/354,074.28 - Step 6: Final answer
x = 176,064.47
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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.