Finding the Fourth Proportional to 197,364.18, 272,393.30 and 129,577.79
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Solution
The fourth proportional to 197,364.18, 272,393.30 and 129,577.79 is: 178,837.52
Step by Step Solution
- Step 1: Write the proportion equation
197,364.18 : 272,393.30 = 129,577.79 : x - Step 2: Convert to fraction form
197,364.18/272,393.30 = 129,577.79/x - Step 3: Cross multiply
197,364.18x = 272,393.30 × 129,577.79 - Step 4: Simplify right side
197,364.18x = 35,296,119,814.95 - Step 5: Solve for x
x = 35,296,119,814.95/197,364.18 - Step 6: Final answer
x = 178,837.52
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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.