Finding the Fourth Proportional to 354,949.24, 490,348.12 and 307,119.56
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Solution
The fourth proportional to 354,949.24, 490,348.12 and 307,119.56 is: 424,273.34
Step by Step Solution
- Step 1: Write the proportion equation
354,949.24 : 490,348.12 = 307,119.56 : x - Step 2: Convert to fraction form
354,949.24/490,348.12 = 307,119.56/x - Step 3: Cross multiply
354,949.24x = 490,348.12 × 307,119.56 - Step 4: Simplify right side
354,949.24x = 150,595,498,861.23 - Step 5: Solve for x
x = 150,595,498,861.23/354,949.24 - Step 6: Final answer
x = 424,273.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.