Finding the Fourth Proportional to 197,876.18, 272,974.05 and 129,865.94
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Solution
The fourth proportional to 197,876.18, 272,974.05 and 129,865.94 is: 179,152.60
Step by Step Solution
- Step 1: Write the proportion equation
197,876.18 : 272,974.05 = 129,865.94 : x - Step 2: Convert to fraction form
197,876.18/272,974.05 = 129,865.94/x - Step 3: Cross multiply
197,876.18x = 272,974.05 × 129,865.94 - Step 4: Simplify right side
197,876.18x = 35,450,031,598.86 - Step 5: Solve for x
x = 35,450,031,598.86/197,876.18 - Step 6: Final answer
x = 179,152.60
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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.