Finding the Fourth Proportional to 207,320.90, 310,981.36 and 67,093.70
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Solution
The fourth proportional to 207,320.90, 310,981.36 and 67,093.70 is: 100,640.55
Step by Step Solution
- Step 1: Write the proportion equation
207,320.90 : 310,981.36 = 67,093.70 : x - Step 2: Convert to fraction form
207,320.90/310,981.36 = 67,093.70/x - Step 3: Cross multiply
207,320.90x = 310,981.36 × 67,093.70 - Step 4: Simplify right side
207,320.90x = 20,864,890,073.43 - Step 5: Solve for x
x = 20,864,890,073.43/207,320.90 - Step 6: Final answer
x = 100,640.55
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1.5x scale
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.