Finding the Fourth Proportional to 281,201.10, 421,801.65 and 259,549.80
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Solution
The fourth proportional to 281,201.10, 421,801.65 and 259,549.80 is: 389,324.70
Step by Step Solution
- Step 1: Write the proportion equation
281,201.10 : 421,801.65 = 259,549.80 : x - Step 2: Convert to fraction form
281,201.10/421,801.65 = 259,549.80/x - Step 3: Cross multiply
281,201.10x = 421,801.65 × 259,549.80 - Step 4: Simplify right side
281,201.10x = 109,478,533,897.17 - Step 5: Solve for x
x = 109,478,533,897.17/281,201.10 - Step 6: Final answer
x = 389,324.70
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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.