Finding the Fourth Proportional to 393,504.84, 590,194.35 and 140,738.13
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Solution
The fourth proportional to 393,504.84, 590,194.35 and 140,738.13 is: 211,084.70
Step by Step Solution
- Step 1: Write the proportion equation
393,504.84 : 590,194.35 = 140,738.13 : x - Step 2: Convert to fraction form
393,504.84/590,194.35 = 140,738.13/x - Step 3: Cross multiply
393,504.84x = 590,194.35 × 140,738.13 - Step 4: Simplify right side
393,504.84x = 83,062,849,155.57 - Step 5: Solve for x
x = 83,062,849,155.57/393,504.84 - Step 6: Final answer
x = 211,084.70
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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.