Finding the Fourth Proportional to 313,672.57, 470,519.09 and 149,319.31
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Solution
The fourth proportional to 313,672.57, 470,519.09 and 149,319.31 is: 223,983.83
Step by Step Solution
- Step 1: Write the proportion equation
313,672.57 : 470,519.09 = 149,319.31 : x - Step 2: Convert to fraction form
313,672.57/470,519.09 = 149,319.31/x - Step 3: Cross multiply
313,672.57x = 470,519.09 × 149,319.31 - Step 4: Simplify right side
313,672.57x = 70,257,584,944.08 - Step 5: Solve for x
x = 70,257,584,944.08/313,672.57 - Step 6: Final answer
x = 223,983.83
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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.