Finding the Fourth Proportional to 246,886.20, 340,723.94 and 139,475.95
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Solution
The fourth proportional to 246,886.20, 340,723.94 and 139,475.95 is: 192,488.66
Step by Step Solution
- Step 1: Write the proportion equation
246,886.20 : 340,723.94 = 139,475.95 : x - Step 2: Convert to fraction form
246,886.20/340,723.94 = 139,475.95/x - Step 3: Cross multiply
246,886.20x = 340,723.94 × 139,475.95 - Step 4: Simplify right side
246,886.20x = 47,522,793,670.05 - Step 5: Solve for x
x = 47,522,793,670.05/246,886.20 - Step 6: Final answer
x = 192,488.66
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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.