Finding the Fourth Proportional to 174,636.87, 261,957.14 and 139,797.99
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Solution
The fourth proportional to 174,636.87, 261,957.14 and 139,797.99 is: 209,698.45
Step by Step Solution
- Step 1: Write the proportion equation
174,636.87 : 261,957.14 = 139,797.99 : x - Step 2: Convert to fraction form
174,636.87/261,957.14 = 139,797.99/x - Step 3: Cross multiply
174,636.87x = 261,957.14 × 139,797.99 - Step 4: Simplify right side
174,636.87x = 36,621,080,939.16 - Step 5: Solve for x
x = 36,621,080,939.16/174,636.87 - Step 6: Final answer
x = 209,698.45
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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.