Finding the Fourth Proportional to 197,811.80, 272,979.96 and 107,170.07
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Solution
The fourth proportional to 197,811.80, 272,979.96 and 107,170.07 is: 147,894.52
Step by Step Solution
- Step 1: Write the proportion equation
197,811.80 : 272,979.96 = 107,170.07 : x - Step 2: Convert to fraction form
197,811.80/272,979.96 = 107,170.07/x - Step 3: Cross multiply
197,811.80x = 272,979.96 × 107,170.07 - Step 4: Simplify right side
197,811.80x = 29,255,281,421.80 - Step 5: Solve for x
x = 29,255,281,421.80/197,811.80 - Step 6: Final answer
x = 147,894.52
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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.