Finding the Fourth Proportional to 331,396.28, 457,332.18 and 180,493.28
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Solution
The fourth proportional to 331,396.28, 457,332.18 and 180,493.28 is: 249,083.62
Step by Step Solution
- Step 1: Write the proportion equation
331,396.28 : 457,332.18 = 180,493.28 : x - Step 2: Convert to fraction form
331,396.28/457,332.18 = 180,493.28/x - Step 3: Cross multiply
331,396.28x = 457,332.18 × 180,493.28 - Step 4: Simplify right side
331,396.28x = 82,545,385,217.75 - Step 5: Solve for x
x = 82,545,385,217.75/331,396.28 - Step 6: Final answer
x = 249,083.62
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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.