Finding the Fourth Proportional to 201,523.05, 278,141.58 and 115,539.80
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Solution
The fourth proportional to 201,523.05, 278,141.58 and 115,539.80 is: 159,467.72
Step by Step Solution
- Step 1: Write the proportion equation
201,523.05 : 278,141.58 = 115,539.80 : x - Step 2: Convert to fraction form
201,523.05/278,141.58 = 115,539.80/x - Step 3: Cross multiply
201,523.05x = 278,141.58 × 115,539.80 - Step 4: Simplify right side
201,523.05x = 32,136,421,134.18 - Step 5: Solve for x
x = 32,136,421,134.18/201,523.05 - Step 6: Final answer
x = 159,467.72
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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.