Finding the Fourth Proportional to 282,630.18, 389,639.92 and 225,463.53
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Solution
The fourth proportional to 282,630.18, 389,639.92 and 225,463.53 is: 310,828.77
Step by Step Solution
- Step 1: Write the proportion equation
282,630.18 : 389,639.92 = 225,463.53 : x - Step 2: Convert to fraction form
282,630.18/389,639.92 = 225,463.53/x - Step 3: Cross multiply
282,630.18x = 389,639.92 × 225,463.53 - Step 4: Simplify right side
282,630.18x = 87,849,591,792.12 - Step 5: Solve for x
x = 87,849,591,792.12/282,630.18 - Step 6: Final answer
x = 310,828.77
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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.