Finding the Fourth Proportional to 305,905.48, 422,178.08 and 185,076.44
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Solution
The fourth proportional to 305,905.48, 422,178.08 and 185,076.44 is: 255,422.74
Step by Step Solution
- Step 1: Write the proportion equation
305,905.48 : 422,178.08 = 185,076.44 : x - Step 2: Convert to fraction form
305,905.48/422,178.08 = 185,076.44/x - Step 3: Cross multiply
305,905.48x = 422,178.08 × 185,076.44 - Step 4: Simplify right side
305,905.48x = 78,135,216,092.44 - Step 5: Solve for x
x = 78,135,216,092.44/305,905.48 - Step 6: Final answer
x = 255,422.74
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1.5x scale
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.