Finding the Fourth Proportional to 189,432.05, 284,194.85 and 56,311.74
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Solution
The fourth proportional to 189,432.05, 284,194.85 and 56,311.74 is: 84,481.52
Step by Step Solution
- Step 1: Write the proportion equation
189,432.05 : 284,194.85 = 56,311.74 : x - Step 2: Convert to fraction form
189,432.05/284,194.85 = 56,311.74/x - Step 3: Cross multiply
189,432.05x = 284,194.85 × 56,311.74 - Step 4: Simplify right side
189,432.05x = 16,003,506,220.98 - Step 5: Solve for x
x = 16,003,506,220.98/189,432.05 - Step 6: Final answer
x = 84,481.52
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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.