Finding the Fourth Proportional to 201,516.30, 278,132.27 and 115,533.05
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Solution
The fourth proportional to 201,516.30, 278,132.27 and 115,533.05 is: 159,458.40
Step by Step Solution
- Step 1: Write the proportion equation
201,516.30 : 278,132.27 = 115,533.05 : x - Step 2: Convert to fraction form
201,516.30/278,132.27 = 115,533.05/x - Step 3: Cross multiply
201,516.30x = 278,132.27 × 115,533.05 - Step 4: Simplify right side
201,516.30x = 32,133,467,488.20 - Step 5: Solve for x
x = 32,133,467,488.20/201,516.30 - Step 6: Final answer
x = 159,458.40
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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.