Finding the Fourth Proportional to 490,738.19, 736,160.06 and 206,457.68
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Solution
The fourth proportional to 490,738.19, 736,160.06 and 206,457.68 is: 309,708.73
Step by Step Solution
- Step 1: Write the proportion equation
490,738.19 : 736,160.06 = 206,457.68 : x - Step 2: Convert to fraction form
490,738.19/736,160.06 = 206,457.68/x - Step 3: Cross multiply
490,738.19x = 736,160.06 × 206,457.68 - Step 4: Simplify right side
490,738.19x = 151,985,900,452.81 - Step 5: Solve for x
x = 151,985,900,452.81/490,738.19 - Step 6: Final answer
x = 309,708.73
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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.