Finding the Fourth Proportional to 631,163.60, 946,750.20 and 210,438.80
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Solution
The fourth proportional to 631,163.60, 946,750.20 and 210,438.80 is: 315,659.80
Step by Step Solution
- Step 1: Write the proportion equation
631,163.60 : 946,750.20 = 210,438.80 : x - Step 2: Convert to fraction form
631,163.60/946,750.20 = 210,438.80/x - Step 3: Cross multiply
631,163.60x = 946,750.20 × 210,438.80 - Step 4: Simplify right side
631,163.60x = 199,232,975,987.76 - Step 5: Solve for x
x = 199,232,975,987.76/631,163.60 - Step 6: Final answer
x = 315,659.80
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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.