Finding the Fourth Proportional to 207,331.80, 310,997.70 and 165,859.80
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Solution
The fourth proportional to 207,331.80, 310,997.70 and 165,859.80 is: 248,789.70
Step by Step Solution
- Step 1: Write the proportion equation
207,331.80 : 310,997.70 = 165,859.80 : x - Step 2: Convert to fraction form
207,331.80/310,997.70 = 165,859.80/x - Step 3: Cross multiply
207,331.80x = 310,997.70 × 165,859.80 - Step 4: Simplify right side
207,331.80x = 51,582,016,322.46 - Step 5: Solve for x
x = 51,582,016,322.46/207,331.80 - Step 6: Final answer
x = 248,789.70
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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.