Finding the Fourth Proportional to 281,765.81, 388,876.68 and 174,370.44
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Solution
The fourth proportional to 281,765.81, 388,876.68 and 174,370.44 is: 240,655.88
Step by Step Solution
- Step 1: Write the proportion equation
281,765.81 : 388,876.68 = 174,370.44 : x - Step 2: Convert to fraction form
281,765.81/388,876.68 = 174,370.44/x - Step 3: Cross multiply
281,765.81x = 388,876.68 × 174,370.44 - Step 4: Simplify right side
281,765.81x = 67,808,597,068.20 - Step 5: Solve for x
x = 67,808,597,068.20/281,765.81 - Step 6: Final answer
x = 240,655.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.