Finding the Fourth Proportional to 421,816.36, 632,729.34 and 141,334.12
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Solution
The fourth proportional to 421,816.36, 632,729.34 and 141,334.12 is: 212,002.79
Step by Step Solution
- Step 1: Write the proportion equation
421,816.36 : 632,729.34 = 141,334.12 : x - Step 2: Convert to fraction form
421,816.36/632,729.34 = 141,334.12/x - Step 3: Cross multiply
421,816.36x = 632,729.34 × 141,334.12 - Step 4: Simplify right side
421,816.36x = 89,426,244,467.08 - Step 5: Solve for x
x = 89,426,244,467.08/421,816.36 - Step 6: Final answer
x = 212,002.79
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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.