Finding the Fourth Proportional to 246,701.80, 340,449.70 and 139,276.20
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Solution
The fourth proportional to 246,701.80, 340,449.70 and 139,276.20 is: 192,201.84
Step by Step Solution
- Step 1: Write the proportion equation
246,701.80 : 340,449.70 = 139,276.20 : x - Step 2: Convert to fraction form
246,701.80/340,449.70 = 139,276.20/x - Step 3: Cross multiply
246,701.80x = 340,449.70 × 139,276.20 - Step 4: Simplify right side
246,701.80x = 47,416,540,507.14 - Step 5: Solve for x
x = 47,416,540,507.14/246,701.80 - Step 6: Final answer
x = 192,201.84
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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.