Finding the Fourth Proportional to 197,202.08, 272,138.88 and 107,778.08
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Solution
The fourth proportional to 197,202.08, 272,138.88 and 107,778.08 is: 148,733.76
Step by Step Solution
- Step 1: Write the proportion equation
197,202.08 : 272,138.88 = 107,778.08 : x - Step 2: Convert to fraction form
197,202.08/272,138.88 = 107,778.08/x - Step 3: Cross multiply
197,202.08x = 272,138.88 × 107,778.08 - Step 4: Simplify right side
197,202.08x = 29,330,605,979.75 - Step 5: Solve for x
x = 29,330,605,979.75/197,202.08 - Step 6: Final answer
x = 148,733.76
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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.