Finding the Fourth Proportional to 320,937.66, 481,428.36 and 84,279.96
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Solution
The fourth proportional to 320,937.66, 481,428.36 and 84,279.96 is: 126,425.68
Step by Step Solution
- Step 1: Write the proportion equation
320,937.66 : 481,428.36 = 84,279.96 : x - Step 2: Convert to fraction form
320,937.66/481,428.36 = 84,279.96/x - Step 3: Cross multiply
320,937.66x = 481,428.36 × 84,279.96 - Step 4: Simplify right side
320,937.66x = 40,574,762,923.67 - Step 5: Solve for x
x = 40,574,762,923.67/320,937.66 - Step 6: Final answer
x = 126,425.68
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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.