Finding the Fourth Proportional to 452,168.28, 678,239.28 and 115,207.56
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Solution
The fourth proportional to 452,168.28, 678,239.28 and 115,207.56 is: 172,807.99
Step by Step Solution
- Step 1: Write the proportion equation
452,168.28 : 678,239.28 = 115,207.56 : x - Step 2: Convert to fraction form
452,168.28/678,239.28 = 115,207.56/x - Step 3: Cross multiply
452,168.28x = 678,239.28 × 115,207.56 - Step 4: Simplify right side
452,168.28x = 78,138,292,544.96 - Step 5: Solve for x
x = 78,138,292,544.96/452,168.28 - Step 6: Final answer
x = 172,807.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.