Finding the Fourth Proportional to 417,203.60, 625,805.40 and 121,715.60
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Solution
The fourth proportional to 417,203.60, 625,805.40 and 121,715.60 is: 182,573.40
Step by Step Solution
- Step 1: Write the proportion equation
417,203.60 : 625,805.40 = 121,715.60 : x - Step 2: Convert to fraction form
417,203.60/625,805.40 = 121,715.60/x - Step 3: Cross multiply
417,203.60x = 625,805.40 × 121,715.60 - Step 4: Simplify right side
417,203.60x = 76,170,279,744.24 - Step 5: Solve for x
x = 76,170,279,744.24/417,203.60 - Step 6: Final answer
x = 182,573.40
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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.