Finding the Fourth Proportional to 217,287.98, 299,871.27 and 121,794.70
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Solution
The fourth proportional to 217,287.98, 299,871.27 and 121,794.70 is: 168,084.45
Step by Step Solution
- Step 1: Write the proportion equation
217,287.98 : 299,871.27 = 121,794.70 : x - Step 2: Convert to fraction form
217,287.98/299,871.27 = 121,794.70/x - Step 3: Cross multiply
217,287.98x = 299,871.27 × 121,794.70 - Step 4: Simplify right side
217,287.98x = 36,522,729,868.91 - Step 5: Solve for x
x = 36,522,729,868.91/217,287.98 - Step 6: Final answer
x = 168,084.45
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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.