Finding the Fourth Proportional to 262,867.68, 394,314.58 and 128,055.53
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Solution
The fourth proportional to 262,867.68, 394,314.58 and 128,055.53 is: 192,089.66
Step by Step Solution
- Step 1: Write the proportion equation
262,867.68 : 394,314.58 = 128,055.53 : x - Step 2: Convert to fraction form
262,867.68/394,314.58 = 128,055.53/x - Step 3: Cross multiply
262,867.68x = 394,314.58 × 128,055.53 - Step 4: Simplify right side
262,867.68x = 50,494,163,674.48 - Step 5: Solve for x
x = 50,494,163,674.48/262,867.68 - Step 6: Final answer
x = 192,089.66
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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.