Finding the Fourth Proportional to 254,686.21, 351,445.84 and 139,958.82
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Solution
The fourth proportional to 254,686.21, 351,445.84 and 139,958.82 is: 193,131.56
Step by Step Solution
- Step 1: Write the proportion equation
254,686.21 : 351,445.84 = 139,958.82 : x - Step 2: Convert to fraction form
254,686.21/351,445.84 = 139,958.82/x - Step 3: Cross multiply
254,686.21x = 351,445.84 × 139,958.82 - Step 4: Simplify right side
254,686.21x = 49,187,944,710.41 - Step 5: Solve for x
x = 49,187,944,710.41/254,686.21 - Step 6: Final answer
x = 193,131.56
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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.