Finding the Fourth Proportional to 318,542.88, 477,813.84 and 218,399.48
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Solution
The fourth proportional to 318,542.88, 477,813.84 and 218,399.48 is: 327,598.88
Step by Step Solution
- Step 1: Write the proportion equation
318,542.88 : 477,813.84 = 218,399.48 : x - Step 2: Convert to fraction form
318,542.88/477,813.84 = 218,399.48/x - Step 3: Cross multiply
318,542.88x = 477,813.84 × 218,399.48 - Step 4: Simplify right side
318,542.88x = 104,354,292,776.54 - Step 5: Solve for x
x = 104,354,292,776.54/318,542.88 - Step 6: Final answer
x = 327,598.88
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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.