Finding the Fourth Proportional to 197,811.35, 272,979.25 and 107,169.75
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Solution
The fourth proportional to 197,811.35, 272,979.25 and 107,169.75 is: 147,894.03
Step by Step Solution
- Step 1: Write the proportion equation
197,811.35 : 272,979.25 = 107,169.75 : x - Step 2: Convert to fraction form
197,811.35/272,979.25 = 107,169.75/x - Step 3: Cross multiply
197,811.35x = 272,979.25 × 107,169.75 - Step 4: Simplify right side
197,811.35x = 29,255,117,709.76 - Step 5: Solve for x
x = 29,255,117,709.76/197,811.35 - Step 6: Final answer
x = 147,894.03
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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.