Finding the Fourth Proportional to 318,616.20, 477,923.09 and 118,986.84
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Solution
The fourth proportional to 318,616.20, 477,923.09 and 118,986.84 is: 178,479.81
Step by Step Solution
- Step 1: Write the proportion equation
318,616.20 : 477,923.09 = 118,986.84 : x - Step 2: Convert to fraction form
318,616.20/477,923.09 = 118,986.84/x - Step 3: Cross multiply
318,616.20x = 477,923.09 × 118,986.84 - Step 4: Simplify right side
318,616.20x = 56,866,557,647.20 - Step 5: Solve for x
x = 56,866,557,647.20/318,616.20 - Step 6: Final answer
x = 178,479.81
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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.