Finding the Fourth Proportional to 378,307.18, 567,319.30 and 125,540.55
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Solution
The fourth proportional to 378,307.18, 567,319.30 and 125,540.55 is: 188,263.88
Step by Step Solution
- Step 1: Write the proportion equation
378,307.18 : 567,319.30 = 125,540.55 : x - Step 2: Convert to fraction form
378,307.18/567,319.30 = 125,540.55/x - Step 3: Cross multiply
378,307.18x = 567,319.30 × 125,540.55 - Step 4: Simplify right side
378,307.18x = 71,221,576,947.62 - Step 5: Solve for x
x = 71,221,576,947.62/378,307.18 - Step 6: Final answer
x = 188,263.88
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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.