Finding the Fourth Proportional to 138,263.44, 207,445.13 and 48,319.42
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Solution
The fourth proportional to 138,263.44, 207,445.13 and 48,319.42 is: 72,496.59
Step by Step Solution
- Step 1: Write the proportion equation
138,263.44 : 207,445.13 = 48,319.42 : x - Step 2: Convert to fraction form
138,263.44/207,445.13 = 48,319.42/x - Step 3: Cross multiply
138,263.44x = 207,445.13 × 48,319.42 - Step 4: Simplify right side
138,263.44x = 10,023,628,363.42 - Step 5: Solve for x
x = 10,023,628,363.42/138,263.44 - Step 6: Final answer
x = 72,496.59
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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.