Finding the Fourth Proportional to 189,390.43, 283,719.31 and 158,630.36
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Solution
The fourth proportional to 189,390.43, 283,719.31 and 158,630.36 is: 237,638.70
Step by Step Solution
- Step 1: Write the proportion equation
189,390.43 : 283,719.31 = 158,630.36 : x - Step 2: Convert to fraction form
189,390.43/283,719.31 = 158,630.36/x - Step 3: Cross multiply
189,390.43x = 283,719.31 × 158,630.36 - Step 4: Simplify right side
189,390.43x = 45,006,496,284.25 - Step 5: Solve for x
x = 45,006,496,284.25/189,390.43 - Step 6: Final answer
x = 237,638.70
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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.