Finding the Fourth Proportional to 197,593.88, 272,605.12 and 129,648.35
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Solution
The fourth proportional to 197,593.88, 272,605.12 and 129,648.35 is: 178,865.89
Step by Step Solution
- Step 1: Write the proportion equation
197,593.88 : 272,605.12 = 129,648.35 : x - Step 2: Convert to fraction form
197,593.88/272,605.12 = 129,648.35/x - Step 3: Cross multiply
197,593.88x = 272,605.12 × 129,648.35 - Step 4: Simplify right side
197,593.88x = 35,342,804,366.94 - Step 5: Solve for x
x = 35,342,804,366.94/197,593.88 - Step 6: Final answer
x = 178,865.89
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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.