Finding the Fourth Proportional to 416,937.98, 575,163.08 and 279,122.36
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Solution
The fourth proportional to 416,937.98, 575,163.08 and 279,122.36 is: 385,047.37
Step by Step Solution
- Step 1: Write the proportion equation
416,937.98 : 575,163.08 = 279,122.36 : x - Step 2: Convert to fraction form
416,937.98/575,163.08 = 279,122.36/x - Step 3: Cross multiply
416,937.98x = 575,163.08 × 279,122.36 - Step 4: Simplify right side
416,937.98x = 160,540,873,049.75 - Step 5: Solve for x
x = 160,540,873,049.75/416,937.98 - Step 6: Final answer
x = 385,047.37
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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.