Finding the Fourth Proportional to 325,219.12, 487,968.20 and 125,679.63
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Solution
The fourth proportional to 325,219.12, 487,968.20 and 125,679.63 is: 188,573.37
Step by Step Solution
- Step 1: Write the proportion equation
325,219.12 : 487,968.20 = 125,679.63 : x - Step 2: Convert to fraction form
325,219.12/487,968.20 = 125,679.63/x - Step 3: Cross multiply
325,219.12x = 487,968.20 × 125,679.63 - Step 4: Simplify right side
325,219.12x = 61,327,664,500.55 - Step 5: Solve for x
x = 61,327,664,500.55/325,219.12 - Step 6: Final answer
x = 188,573.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.