Finding the Fourth Proportional to 312,884.15, 431,777.52 and 176,944.79
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Solution
The fourth proportional to 312,884.15, 431,777.52 and 176,944.79 is: 244,182.33
Step by Step Solution
- Step 1: Write the proportion equation
312,884.15 : 431,777.52 = 176,944.79 : x - Step 2: Convert to fraction form
312,884.15/431,777.52 = 176,944.79/x - Step 3: Cross multiply
312,884.15x = 431,777.52 × 176,944.79 - Step 4: Simplify right side
312,884.15x = 76,400,780,444.23 - Step 5: Solve for x
x = 76,400,780,444.23/312,884.15 - Step 6: Final answer
x = 244,182.33
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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.