Finding the Fourth Proportional to 208,579.26, 287,845.05 and 117,948.79
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Solution
The fourth proportional to 208,579.26, 287,845.05 and 117,948.79 is: 162,772.53
Step by Step Solution
- Step 1: Write the proportion equation
208,579.26 : 287,845.05 = 117,948.79 : x - Step 2: Convert to fraction form
208,579.26/287,845.05 = 117,948.79/x - Step 3: Cross multiply
208,579.26x = 287,845.05 × 117,948.79 - Step 4: Simplify right side
208,579.26x = 33,950,973,915.76 - Step 5: Solve for x
x = 33,950,973,915.76/208,579.26 - Step 6: Final answer
x = 162,772.53
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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.