Finding the Fourth Proportional to 427,657.56, 641,700.18 and 191,169.96
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Solution
The fourth proportional to 427,657.56, 641,700.18 and 191,169.96 is: 286,850.53
Step by Step Solution
- Step 1: Write the proportion equation
427,657.56 : 641,700.18 = 191,169.96 : x - Step 2: Convert to fraction form
427,657.56/641,700.18 = 191,169.96/x - Step 3: Cross multiply
427,657.56x = 641,700.18 × 191,169.96 - Step 4: Simplify right side
427,657.56x = 122,673,797,742.59 - Step 5: Solve for x
x = 122,673,797,742.59/427,657.56 - Step 6: Final answer
x = 286,850.53
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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.