Finding the Fourth Proportional to 217,093.40, 299,580.21 and 121,595.21
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Solution
The fourth proportional to 217,093.40, 299,580.21 and 121,595.21 is: 167,796.53
Step by Step Solution
- Step 1: Write the proportion equation
217,093.40 : 299,580.21 = 121,595.21 : x - Step 2: Convert to fraction form
217,093.40/299,580.21 = 121,595.21/x - Step 3: Cross multiply
217,093.40x = 299,580.21 × 121,595.21 - Step 4: Simplify right side
217,093.40x = 36,427,518,546.79 - Step 5: Solve for x
x = 36,427,518,546.79/217,093.40 - Step 6: Final answer
x = 167,796.53
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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.