Finding the Fourth Proportional to 285,324.44, 427,985.63 and 85,643.96
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Solution
The fourth proportional to 285,324.44, 427,985.63 and 85,643.96 is: 128,465.63
Step by Step Solution
- Step 1: Write the proportion equation
285,324.44 : 427,985.63 = 85,643.96 : x - Step 2: Convert to fraction form
285,324.44/427,985.63 = 85,643.96/x - Step 3: Cross multiply
285,324.44x = 427,985.63 × 85,643.96 - Step 4: Simplify right side
285,324.44x = 36,654,384,176.29 - Step 5: Solve for x
x = 36,654,384,176.29/285,324.44 - Step 6: Final answer
x = 128,465.63
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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.