Finding the Fourth Proportional to 427,323.68, 641,021.88 and 111,780.08
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Solution
The fourth proportional to 427,323.68, 641,021.88 and 111,780.08 is: 167,679.63
Step by Step Solution
- Step 1: Write the proportion equation
427,323.68 : 641,021.88 = 111,780.08 : x - Step 2: Convert to fraction form
427,323.68/641,021.88 = 111,780.08/x - Step 3: Cross multiply
427,323.68x = 641,021.88 × 111,780.08 - Step 4: Simplify right side
427,323.68x = 71,653,477,028.15 - Step 5: Solve for x
x = 71,653,477,028.15/427,323.68 - Step 6: Final answer
x = 167,679.63
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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.