Finding the Fourth Proportional to 207,115.40, 310,235.70 and 207,115.40
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Solution
The fourth proportional to 207,115.40, 310,235.70 and 207,115.40 is: 310,235.70
Step by Step Solution
- Step 1: Write the proportion equation
207,115.40 : 310,235.70 = 207,115.40 : x - Step 2: Convert to fraction form
207,115.40/310,235.70 = 207,115.40/x - Step 3: Cross multiply
207,115.40x = 310,235.70 × 207,115.40 - Step 4: Simplify right side
207,115.40x = 64,254,591,099.78 - Step 5: Solve for x
x = 64,254,591,099.78/207,115.40 - Step 6: Final answer
x = 310,235.70
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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.