Finding the Fourth Proportional to 319,850.63, 479,941.99 and 130,449.95
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Solution
The fourth proportional to 319,850.63, 479,941.99 and 130,449.95 is: 195,742.65
Step by Step Solution
- Step 1: Write the proportion equation
319,850.63 : 479,941.99 = 130,449.95 : x - Step 2: Convert to fraction form
319,850.63/479,941.99 = 130,449.95/x - Step 3: Cross multiply
319,850.63x = 479,941.99 × 130,449.95 - Step 4: Simplify right side
319,850.63x = 62,608,409,755.97 - Step 5: Solve for x
x = 62,608,409,755.97/319,850.63 - Step 6: Final answer
x = 195,742.65
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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.