Finding the Fourth Proportional to 201,389.20, 277,847.88 and 124,880.80
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Solution
The fourth proportional to 201,389.20, 277,847.88 and 124,880.80 is: 172,292.58
Step by Step Solution
- Step 1: Write the proportion equation
201,389.20 : 277,847.88 = 124,880.80 : x - Step 2: Convert to fraction form
201,389.20/277,847.88 = 124,880.80/x - Step 3: Cross multiply
201,389.20x = 277,847.88 × 124,880.80 - Step 4: Simplify right side
201,389.20x = 34,697,865,532.70 - Step 5: Solve for x
x = 34,697,865,532.70/201,389.20 - Step 6: Final answer
x = 172,292.58
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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.