Finding the Fourth Proportional to 202,107.24, 278,905.12 and 117,238.68
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Solution
The fourth proportional to 202,107.24, 278,905.12 and 117,238.68 is: 161,787.71
Step by Step Solution
- Step 1: Write the proportion equation
202,107.24 : 278,905.12 = 117,238.68 : x - Step 2: Convert to fraction form
202,107.24/278,905.12 = 117,238.68/x - Step 3: Cross multiply
202,107.24x = 278,905.12 × 117,238.68 - Step 4: Simplify right side
202,107.24x = 32,698,468,114.04 - Step 5: Solve for x
x = 32,698,468,114.04/202,107.24 - Step 6: Final answer
x = 161,787.71
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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.