Finding the Fourth Proportional to 305,961.30, 422,235.99 and 185,124.78
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Solution
The fourth proportional to 305,961.30, 422,235.99 and 185,124.78 is: 255,477.88
Step by Step Solution
- Step 1: Write the proportion equation
305,961.30 : 422,235.99 = 185,124.78 : x - Step 2: Convert to fraction form
305,961.30/422,235.99 = 185,124.78/x - Step 3: Cross multiply
305,961.30x = 422,235.99 × 185,124.78 - Step 4: Simplify right side
305,961.30x = 78,166,344,756.83 - Step 5: Solve for x
x = 78,166,344,756.83/305,961.30 - Step 6: Final answer
x = 255,477.88
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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.