Finding the Fourth Proportional to 318,205.26, 439,119.68 and 236,897.06
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Solution
The fourth proportional to 318,205.26, 439,119.68 and 236,897.06 is: 326,915.28
Step by Step Solution
- Step 1: Write the proportion equation
318,205.26 : 439,119.68 = 236,897.06 : x - Step 2: Convert to fraction form
318,205.26/439,119.68 = 236,897.06/x - Step 3: Cross multiply
318,205.26x = 439,119.68 × 236,897.06 - Step 4: Simplify right side
318,205.26x = 104,026,161,180.14 - Step 5: Solve for x
x = 104,026,161,180.14/318,205.26 - Step 6: Final answer
x = 326,915.28
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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.