Finding the Fourth Proportional to 378,230.77, 567,395.34 and 138,307.31
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Solution
The fourth proportional to 378,230.77, 567,395.34 and 138,307.31 is: 207,478.95
Step by Step Solution
- Step 1: Write the proportion equation
378,230.77 : 567,395.34 = 138,307.31 : x - Step 2: Convert to fraction form
378,230.77/567,395.34 = 138,307.31/x - Step 3: Cross multiply
378,230.77x = 567,395.34 × 138,307.31 - Step 4: Simplify right side
378,230.77x = 78,474,923,181.94 - Step 5: Solve for x
x = 78,474,923,181.94/378,230.77 - Step 6: Final answer
x = 207,478.95
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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.