Finding the Fourth Proportional to 318,485.07, 477,727.63 and 81,827.75
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Solution
The fourth proportional to 318,485.07, 477,727.63 and 81,827.75 is: 122,741.63
Step by Step Solution
- Step 1: Write the proportion equation
318,485.07 : 477,727.63 = 81,827.75 : x - Step 2: Convert to fraction form
318,485.07/477,727.63 = 81,827.75/x - Step 3: Cross multiply
318,485.07x = 477,727.63 × 81,827.75 - Step 4: Simplify right side
318,485.07x = 39,091,378,065.48 - Step 5: Solve for x
x = 39,091,378,065.48/318,485.07 - Step 6: Final answer
x = 122,741.63
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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.