Finding the Fourth Proportional to 312,444.32, 431,177.36 and 174,617.19
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Solution
The fourth proportional to 312,444.32, 431,177.36 and 174,617.19 is: 240,974.07
Step by Step Solution
- Step 1: Write the proportion equation
312,444.32 : 431,177.36 = 174,617.19 : x - Step 2: Convert to fraction form
312,444.32/431,177.36 = 174,617.19/x - Step 3: Cross multiply
312,444.32x = 431,177.36 × 174,617.19 - Step 4: Simplify right side
312,444.32x = 75,290,978,121.73 - Step 5: Solve for x
x = 75,290,978,121.73/312,444.32 - Step 6: Final answer
x = 240,974.07
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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.