Finding the Fourth Proportional to 212,465.24, 318,894.96 and 107,358.02
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Solution
The fourth proportional to 212,465.24, 318,894.96 and 107,358.02 is: 161,136.62
Step by Step Solution
- Step 1: Write the proportion equation
212,465.24 : 318,894.96 = 107,358.02 : x - Step 2: Convert to fraction form
212,465.24/318,894.96 = 107,358.02/x - Step 3: Cross multiply
212,465.24x = 318,894.96 × 107,358.02 - Step 4: Simplify right side
212,465.24x = 34,235,931,493.58 - Step 5: Solve for x
x = 34,235,931,493.58/212,465.24 - Step 6: Final answer
x = 161,136.62
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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.