Finding the Fourth Proportional to 207,946.80, 312,028.20 and 97,138.80
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Solution
The fourth proportional to 207,946.80, 312,028.20 and 97,138.80 is: 145,758.65
Step by Step Solution
- Step 1: Write the proportion equation
207,946.80 : 312,028.20 = 97,138.80 : x - Step 2: Convert to fraction form
207,946.80/312,028.20 = 97,138.80/x - Step 3: Cross multiply
207,946.80x = 312,028.20 × 97,138.80 - Step 4: Simplify right side
207,946.80x = 30,310,044,914.16 - Step 5: Solve for x
x = 30,310,044,914.16/207,946.80 - Step 6: Final answer
x = 145,758.65
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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.