Finding the Fourth Proportional to 197,810.28, 272,977.79 and 107,168.48
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Solution
The fourth proportional to 197,810.28, 272,977.79 and 107,168.48 is: 147,892.28
Step by Step Solution
- Step 1: Write the proportion equation
197,810.28 : 272,977.79 = 107,168.48 : x - Step 2: Convert to fraction form
197,810.28/272,977.79 = 107,168.48/x - Step 3: Cross multiply
197,810.28x = 272,977.79 × 107,168.48 - Step 4: Simplify right side
197,810.28x = 29,254,612,927.33 - Step 5: Solve for x
x = 29,254,612,927.33/197,810.28 - Step 6: Final answer
x = 147,892.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.