Finding the Fourth Proportional to 212,438.40, 318,656.64 and 101,293.44
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Solution
The fourth proportional to 212,438.40, 318,656.64 and 101,293.44 is: 151,939.70
Step by Step Solution
- Step 1: Write the proportion equation
212,438.40 : 318,656.64 = 101,293.44 : x - Step 2: Convert to fraction form
212,438.40/318,656.64 = 101,293.44/x - Step 3: Cross multiply
212,438.40x = 318,656.64 × 101,293.44 - Step 4: Simplify right side
212,438.40x = 32,277,827,244.44 - Step 5: Solve for x
x = 32,277,827,244.44/212,438.40 - Step 6: Final answer
x = 151,939.70
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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.