Finding the Fourth Proportional to 313,471.80, 470,207.70 and 266,232.60
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Solution
The fourth proportional to 313,471.80, 470,207.70 and 266,232.60 is: 399,348.90
Step by Step Solution
- Step 1: Write the proportion equation
313,471.80 : 470,207.70 = 266,232.60 : x - Step 2: Convert to fraction form
313,471.80/470,207.70 = 266,232.60/x - Step 3: Cross multiply
313,471.80x = 470,207.70 × 266,232.60 - Step 4: Simplify right side
313,471.80x = 125,184,618,511.02 - Step 5: Solve for x
x = 125,184,618,511.02/313,471.80 - Step 6: Final answer
x = 399,348.90
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1.5x scale
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.