Finding the Fourth Proportional to 189,875.10, 284,776.20 and 56,759.70
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Solution
The fourth proportional to 189,875.10, 284,776.20 and 56,759.70 is: 85,128.65
Step by Step Solution
- Step 1: Write the proportion equation
189,875.10 : 284,776.20 = 56,759.70 : x - Step 2: Convert to fraction form
189,875.10/284,776.20 = 56,759.70/x - Step 3: Cross multiply
189,875.10x = 284,776.20 × 56,759.70 - Step 4: Simplify right side
189,875.10x = 16,163,811,679.14 - Step 5: Solve for x
x = 16,163,811,679.14/189,875.10 - Step 6: Final answer
x = 85,128.65
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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.