Finding the Fourth Proportional to 361,258.09, 498,063.52 and 310,812.68
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Solution
The fourth proportional to 361,258.09, 498,063.52 and 310,812.68 is: 428,514.85
Step by Step Solution
- Step 1: Write the proportion equation
361,258.09 : 498,063.52 = 310,812.68 : x - Step 2: Convert to fraction form
361,258.09/498,063.52 = 310,812.68/x - Step 3: Cross multiply
361,258.09x = 498,063.52 × 310,812.68 - Step 4: Simplify right side
361,258.09x = 154,804,457,461.43 - Step 5: Solve for x
x = 154,804,457,461.43/361,258.09 - Step 6: Final answer
x = 428,514.85
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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.