Finding the Fourth Proportional to 285,449.76, 427,853.88 and 135,567.36
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Solution
The fourth proportional to 285,449.76, 427,853.88 and 135,567.36 is: 203,198.70
Step by Step Solution
- Step 1: Write the proportion equation
285,449.76 : 427,853.88 = 135,567.36 : x - Step 2: Convert to fraction form
285,449.76/427,853.88 = 135,567.36/x - Step 3: Cross multiply
285,449.76x = 427,853.88 × 135,567.36 - Step 4: Simplify right side
285,449.76x = 58,003,020,977.36 - Step 5: Solve for x
x = 58,003,020,977.36/285,449.76 - Step 6: Final answer
x = 203,198.70
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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.