Finding the Fourth Proportional to 171,697.80, 257,546.70 and 76,927.80
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Solution
The fourth proportional to 171,697.80, 257,546.70 and 76,927.80 is: 115,391.70
Step by Step Solution
- Step 1: Write the proportion equation
171,697.80 : 257,546.70 = 76,927.80 : x - Step 2: Convert to fraction form
171,697.80/257,546.70 = 76,927.80/x - Step 3: Cross multiply
171,697.80x = 257,546.70 × 76,927.80 - Step 4: Simplify right side
171,697.80x = 19,812,501,028.26 - Step 5: Solve for x
x = 19,812,501,028.26/171,697.80 - Step 6: Final answer
x = 115,391.70
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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.