Finding the Fourth Proportional to 197,822.79, 272,995.05 and 107,181.06
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Solution
The fourth proportional to 197,822.79, 272,995.05 and 107,181.06 is: 147,909.65
Step by Step Solution
- Step 1: Write the proportion equation
197,822.79 : 272,995.05 = 107,181.06 : x - Step 2: Convert to fraction form
197,822.79/272,995.05 = 107,181.06/x - Step 3: Cross multiply
197,822.79x = 272,995.05 × 107,181.06 - Step 4: Simplify right side
197,822.79x = 29,259,898,833.75 - Step 5: Solve for x
x = 29,259,898,833.75/197,822.79 - Step 6: Final answer
x = 147,909.65
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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.