Finding the Fourth Proportional to 285,076.44, 427,605.84 and 135,424.44
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Solution
The fourth proportional to 285,076.44, 427,605.84 and 135,424.44 is: 203,132.47
Step by Step Solution
- Step 1: Write the proportion equation
285,076.44 : 427,605.84 = 135,424.44 : x - Step 2: Convert to fraction form
285,076.44/427,605.84 = 135,424.44/x - Step 3: Cross multiply
285,076.44x = 427,605.84 × 135,424.44 - Step 4: Simplify right side
285,076.44x = 57,908,281,422.73 - Step 5: Solve for x
x = 57,908,281,422.73/285,076.44 - Step 6: Final answer
x = 203,132.47
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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.