Finding the Fourth Proportional to 389,690.88, 537,715.74 and 236,649.48
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Solution
The fourth proportional to 389,690.88, 537,715.74 and 236,649.48 is: 326,541.26
Step by Step Solution
- Step 1: Write the proportion equation
389,690.88 : 537,715.74 = 236,649.48 : x - Step 2: Convert to fraction form
389,690.88/537,715.74 = 236,649.48/x - Step 3: Cross multiply
389,690.88x = 537,715.74 × 236,649.48 - Step 4: Simplify right side
389,690.88x = 127,250,150,258.82 - Step 5: Solve for x
x = 127,250,150,258.82/389,690.88 - Step 6: Final answer
x = 326,541.26
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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.