Finding the Fourth Proportional to 220,266.97, 303,962.52 and 129,628.28
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Solution
The fourth proportional to 220,266.97, 303,962.52 and 129,628.28 is: 178,883.55
Step by Step Solution
- Step 1: Write the proportion equation
220,266.97 : 303,962.52 = 129,628.28 : x - Step 2: Convert to fraction form
220,266.97/303,962.52 = 129,628.28/x - Step 3: Cross multiply
220,266.97x = 303,962.52 × 129,628.28 - Step 4: Simplify right side
220,266.97x = 39,402,137,026.10 - Step 5: Solve for x
x = 39,402,137,026.10/220,266.97 - Step 6: Final answer
x = 178,883.55
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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.