Finding the Fourth Proportional to 447,891.18, 618,170.31 and 256,967.70
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Solution
The fourth proportional to 447,891.18, 618,170.31 and 256,967.70 is: 354,661.60
Step by Step Solution
- Step 1: Write the proportion equation
447,891.18 : 618,170.31 = 256,967.70 : x - Step 2: Convert to fraction form
447,891.18/618,170.31 = 256,967.70/x - Step 3: Cross multiply
447,891.18x = 618,170.31 × 256,967.70 - Step 4: Simplify right side
447,891.18x = 158,849,802,768.99 - Step 5: Solve for x
x = 158,849,802,768.99/447,891.18 - Step 6: Final answer
x = 354,661.60
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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.