Finding the Fourth Proportional to 403,286.80, 604,930.20 and 226,139.80
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Solution
The fourth proportional to 403,286.80, 604,930.20 and 226,139.80 is: 339,209.70
Step by Step Solution
- Step 1: Write the proportion equation
403,286.80 : 604,930.20 = 226,139.80 : x - Step 2: Convert to fraction form
403,286.80/604,930.20 = 226,139.80/x - Step 3: Cross multiply
403,286.80x = 604,930.20 × 226,139.80 - Step 4: Simplify right side
403,286.80x = 136,798,794,441.96 - Step 5: Solve for x
x = 136,798,794,441.96/403,286.80 - Step 6: Final answer
x = 339,209.70
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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.