Finding the Fourth Proportional to 285,462.88, 428,204.04 and 135,625.84
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Solution
The fourth proportional to 285,462.88, 428,204.04 and 135,625.84 is: 203,443.38
Step by Step Solution
- Step 1: Write the proportion equation
285,462.88 : 428,204.04 = 135,625.84 : x - Step 2: Convert to fraction form
285,462.88/428,204.04 = 135,625.84/x - Step 3: Cross multiply
285,462.88x = 428,204.04 × 135,625.84 - Step 4: Simplify right side
285,462.88x = 58,075,532,616.39 - Step 5: Solve for x
x = 58,075,532,616.39/285,462.88 - Step 6: Final answer
x = 203,443.38
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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.