Finding the Fourth Proportional to 254,682.76, 351,445.21 and 139,958.93
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Solution
The fourth proportional to 254,682.76, 351,445.21 and 139,958.93 is: 193,133.99
Step by Step Solution
- Step 1: Write the proportion equation
254,682.76 : 351,445.21 = 139,958.93 : x - Step 2: Convert to fraction form
254,682.76/351,445.21 = 139,958.93/x - Step 3: Cross multiply
254,682.76x = 351,445.21 × 139,958.93 - Step 4: Simplify right side
254,682.76x = 49,187,897,873.70 - Step 5: Solve for x
x = 49,187,897,873.70/254,682.76 - Step 6: Final answer
x = 193,133.99
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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.