Finding the Fourth Proportional to 287,325.21, 396,508.79 and 166,536.56
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Solution
The fourth proportional to 287,325.21, 396,508.79 and 166,536.56 is: 229,820.45
Step by Step Solution
- Step 1: Write the proportion equation
287,325.21 : 396,508.79 = 166,536.56 : x - Step 2: Convert to fraction form
287,325.21/396,508.79 = 166,536.56/x - Step 3: Cross multiply
287,325.21x = 396,508.79 × 166,536.56 - Step 4: Simplify right side
287,325.21x = 66,033,209,896.36 - Step 5: Solve for x
x = 66,033,209,896.36/287,325.21 - Step 6: Final answer
x = 229,820.45
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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.