Finding the Fourth Proportional to 486,145.38, 670,880.75 and 268,354.18
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Solution
The fourth proportional to 486,145.38, 670,880.75 and 268,354.18 is: 370,328.84
Step by Step Solution
- Step 1: Write the proportion equation
486,145.38 : 670,880.75 = 268,354.18 : x - Step 2: Convert to fraction form
486,145.38/670,880.75 = 268,354.18/x - Step 3: Cross multiply
486,145.38x = 670,880.75 × 268,354.18 - Step 4: Simplify right side
486,145.38x = 180,033,653,544.04 - Step 5: Solve for x
x = 180,033,653,544.04/486,145.38 - Step 6: Final answer
x = 370,328.84
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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.