Finding the Fourth Proportional to 415,805.98, 623,785.90 and 131,568.08
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Solution
The fourth proportional to 415,805.98, 623,785.90 and 131,568.08 is: 197,376.46
Step by Step Solution
- Step 1: Write the proportion equation
415,805.98 : 623,785.90 = 131,568.08 : x - Step 2: Convert to fraction form
415,805.98/623,785.90 = 131,568.08/x - Step 3: Cross multiply
415,805.98x = 623,785.90 × 131,568.08 - Step 4: Simplify right side
415,805.98x = 82,070,313,194.07 - Step 5: Solve for x
x = 82,070,313,194.07/415,805.98 - Step 6: Final answer
x = 197,376.46
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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.