Finding the Fourth Proportional to 281,203.10, 421,804.65 and 259,551.80
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Solution
The fourth proportional to 281,203.10, 421,804.65 and 259,551.80 is: 389,327.70
Step by Step Solution
- Step 1: Write the proportion equation
281,203.10 : 421,804.65 = 259,551.80 : x - Step 2: Convert to fraction form
281,203.10/421,804.65 = 259,551.80/x - Step 3: Cross multiply
281,203.10x = 421,804.65 × 259,551.80 - Step 4: Simplify right side
281,203.10x = 109,480,156,155.87 - Step 5: Solve for x
x = 109,480,156,155.87/281,203.10 - Step 6: Final answer
x = 389,327.70
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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.