Finding the Fourth Proportional to 398,414.22, 549,795.57 and 217,122.26
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Solution
The fourth proportional to 398,414.22, 549,795.57 and 217,122.26 is: 299,619.96
Step by Step Solution
- Step 1: Write the proportion equation
398,414.22 : 549,795.57 = 217,122.26 : x - Step 2: Convert to fraction form
398,414.22/549,795.57 = 217,122.26/x - Step 3: Cross multiply
398,414.22x = 549,795.57 × 217,122.26 - Step 4: Simplify right side
398,414.22x = 119,372,853,947.41 - Step 5: Solve for x
x = 119,372,853,947.41/398,414.22 - Step 6: Final answer
x = 299,619.96
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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.