Finding the Fourth Proportional to 201,762.87, 278,427.06 and 115,736.21
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Solution
The fourth proportional to 201,762.87, 278,427.06 and 115,736.21 is: 159,712.70
Step by Step Solution
- Step 1: Write the proportion equation
201,762.87 : 278,427.06 = 115,736.21 : x - Step 2: Convert to fraction form
201,762.87/278,427.06 = 115,736.21/x - Step 3: Cross multiply
201,762.87x = 278,427.06 × 115,736.21 - Step 4: Simplify right side
201,762.87x = 32,224,092,685.84 - Step 5: Solve for x
x = 32,224,092,685.84/201,762.87 - Step 6: Final answer
x = 159,712.70
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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.