Finding the Fourth Proportional to 417,419.80, 626,129.70 and 207,467.80
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Solution
The fourth proportional to 417,419.80, 626,129.70 and 207,467.80 is: 311,201.70
Step by Step Solution
- Step 1: Write the proportion equation
417,419.80 : 626,129.70 = 207,467.80 : x - Step 2: Convert to fraction form
417,419.80/626,129.70 = 207,467.80/x - Step 3: Cross multiply
417,419.80x = 626,129.70 × 207,467.80 - Step 4: Simplify right side
417,419.80x = 129,901,751,373.66 - Step 5: Solve for x
x = 129,901,751,373.66/417,419.80 - Step 6: Final answer
x = 311,201.70
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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.