Finding the Fourth Proportional to 285,454.62, 428,191.65 and 135,617.58
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Solution
The fourth proportional to 285,454.62, 428,191.65 and 135,617.58 is: 203,430.99
Step by Step Solution
- Step 1: Write the proportion equation
285,454.62 : 428,191.65 = 135,617.58 : x - Step 2: Convert to fraction form
285,454.62/428,191.65 = 135,617.58/x - Step 3: Cross multiply
285,454.62x = 428,191.65 × 135,617.58 - Step 4: Simplify right side
285,454.62x = 58,070,315,349.21 - Step 5: Solve for x
x = 58,070,315,349.21/285,454.62 - Step 6: Final answer
x = 203,430.99
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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.