Finding the Fourth Proportional to 361,474.40, 542,217.08 and 136,938.80
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Solution
The fourth proportional to 361,474.40, 542,217.08 and 136,938.80 is: 205,410.28
Step by Step Solution
- Step 1: Write the proportion equation
361,474.40 : 542,217.08 = 136,938.80 : x - Step 2: Convert to fraction form
361,474.40/542,217.08 = 136,938.80/x - Step 3: Cross multiply
361,474.40x = 542,217.08 × 136,938.80 - Step 4: Simplify right side
361,474.40x = 74,250,556,274.70 - Step 5: Solve for x
x = 74,250,556,274.70/361,474.40 - Step 6: Final answer
x = 205,410.28
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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.