Finding the Fourth Proportional to 352,811.76, 486,889.56 and 201,957.36
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Solution
The fourth proportional to 352,811.76, 486,889.56 and 201,957.36 is: 278,706.50
Step by Step Solution
- Step 1: Write the proportion equation
352,811.76 : 486,889.56 = 201,957.36 : x - Step 2: Convert to fraction form
352,811.76/486,889.56 = 201,957.36/x - Step 3: Cross multiply
352,811.76x = 486,889.56 × 201,957.36 - Step 4: Simplify right side
352,811.76x = 98,330,930,149.16 - Step 5: Solve for x
x = 98,330,930,149.16/352,811.76 - Step 6: Final answer
x = 278,706.50
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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.