Finding the Fourth Proportional to 422,959.19, 634,604.83 and 186,135.74
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Solution
The fourth proportional to 422,959.19, 634,604.83 and 186,135.74 is: 279,276.68
Step by Step Solution
- Step 1: Write the proportion equation
422,959.19 : 634,604.83 = 186,135.74 : x - Step 2: Convert to fraction form
422,959.19/634,604.83 = 186,135.74/x - Step 3: Cross multiply
422,959.19x = 634,604.83 × 186,135.74 - Step 4: Simplify right side
422,959.19x = 118,122,638,381.03 - Step 5: Solve for x
x = 118,122,638,381.03/422,959.19 - Step 6: Final answer
x = 279,276.68
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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.