Finding the Fourth Proportional to 197,444.12, 272,479.14 and 108,020.12
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Solution
The fourth proportional to 197,444.12, 272,479.14 and 108,020.12 is: 149,071.19
Step by Step Solution
- Step 1: Write the proportion equation
197,444.12 : 272,479.14 = 108,020.12 : x - Step 2: Convert to fraction form
197,444.12/272,479.14 = 108,020.12/x - Step 3: Cross multiply
197,444.12x = 272,479.14 × 108,020.12 - Step 4: Simplify right side
197,444.12x = 29,433,229,400.30 - Step 5: Solve for x
x = 29,433,229,400.30/197,444.12 - Step 6: Final answer
x = 149,071.19
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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.