Finding the Fourth Proportional to 263,328.28, 394,992.42 and 144,938.68
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Solution
The fourth proportional to 263,328.28, 394,992.42 and 144,938.68 is: 217,408.02
Step by Step Solution
- Step 1: Write the proportion equation
263,328.28 : 394,992.42 = 144,938.68 : x - Step 2: Convert to fraction form
263,328.28/394,992.42 = 144,938.68/x - Step 3: Cross multiply
263,328.28x = 394,992.42 × 144,938.68 - Step 4: Simplify right side
263,328.28x = 57,249,679,964.81 - Step 5: Solve for x
x = 57,249,679,964.81/263,328.28 - Step 6: Final answer
x = 217,408.02
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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.