Finding the Fourth Proportional to 331,408.18, 457,197.81 and 223,939.06
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Solution
The fourth proportional to 331,408.18, 457,197.81 and 223,939.06 is: 308,937.60
Step by Step Solution
- Step 1: Write the proportion equation
331,408.18 : 457,197.81 = 223,939.06 : x - Step 2: Convert to fraction form
331,408.18/457,197.81 = 223,939.06/x - Step 3: Cross multiply
331,408.18x = 457,197.81 × 223,939.06 - Step 4: Simplify right side
331,408.18x = 102,384,447,805.46 - Step 5: Solve for x
x = 102,384,447,805.46/331,408.18 - Step 6: Final answer
x = 308,937.60
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1.5x scale
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.