Finding the Fourth Proportional to 235,519.77, 325,014.14 and 128,087.49
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Solution
The fourth proportional to 235,519.77, 325,014.14 and 128,087.49 is: 176,759.02
Step by Step Solution
- Step 1: Write the proportion equation
235,519.77 : 325,014.14 = 128,087.49 : x - Step 2: Convert to fraction form
235,519.77/325,014.14 = 128,087.49/x - Step 3: Cross multiply
235,519.77x = 325,014.14 × 128,087.49 - Step 4: Simplify right side
235,519.77x = 41,630,244,766.67 - Step 5: Solve for x
x = 41,630,244,766.67/235,519.77 - Step 6: Final answer
x = 176,759.02
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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.