Finding the Fourth Proportional to 312,765.06, 431,616.25 and 169,525.07
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Solution
The fourth proportional to 312,765.06, 431,616.25 and 169,525.07 is: 233,944.84
Step by Step Solution
- Step 1: Write the proportion equation
312,765.06 : 431,616.25 = 169,525.07 : x - Step 2: Convert to fraction form
312,765.06/431,616.25 = 169,525.07/x - Step 3: Cross multiply
312,765.06x = 431,616.25 × 169,525.07 - Step 4: Simplify right side
312,765.06x = 73,169,773,713.20 - Step 5: Solve for x
x = 73,169,773,713.20/312,765.06 - Step 6: Final answer
x = 233,944.84
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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.