Finding the Fourth Proportional to 313,914.24, 470,860.86 and 136,421.26
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Solution
The fourth proportional to 313,914.24, 470,860.86 and 136,421.26 is: 204,627.33
Step by Step Solution
- Step 1: Write the proportion equation
313,914.24 : 470,860.86 = 136,421.26 : x - Step 2: Convert to fraction form
313,914.24/470,860.86 = 136,421.26/x - Step 3: Cross multiply
313,914.24x = 470,860.86 × 136,421.26 - Step 4: Simplify right side
313,914.24x = 64,235,431,805.88 - Step 5: Solve for x
x = 64,235,431,805.88/313,914.24 - Step 6: Final answer
x = 204,627.33
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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.